24-epibrassinolide restores nitrogen metabolism of pigeon pea under saline stress

Background Several studies have shown that brassinosteroids attenuate the effects of salt stress. However, nothing is known about their effects on amino acid transport, nor the effects of these hormones on nitrate uptake under saline conditions. This study set out to determine the effects of 24-epib...
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Autor*in:	Dalio, Ronaldo José Durigan [verfasserIn] Pinheiro, Hildete Prisco Sodek, Ladaslav Haddad, Claudia Regina Baptista

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2013

Schlagwörter:	Brassinosteroid synthesis inhibitor Nitrate uptake Nitrogen metabolism N-transport amino acids Saline stress Xylem amino acids Xylem exudate

Anmerkung:	© Dalio et al.; licensee Springer. 2013. This article is published under license to BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (

Übergeordnetes Werk:	Enthalten in: Botanical studies - Heidelberg : Springer, 2006, 54(2013), 1 vom: 21. Aug.
Übergeordnetes Werk:	volume:54 ; year:2013 ; number:1 ; day:21 ; month:08

Links:	Volltext

DOI / URN:	10.1186/1999-3110-54-9

Katalog-ID:	SPR036621153

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520			\|a Background Several studies have shown that brassinosteroids attenuate the effects of salt stress. However, nothing is known about their effects on amino acid transport, nor the effects of these hormones on nitrate uptake under saline conditions. This study set out to determine the effects of 24-epibrassinolide, at concentrations of 10-7 M and 0.5 × 10-9 M, and clotrimazole (inhibitor of brassinosteroid synthesis), at 10-4 M, on nitrate uptake and metabolism in plants of C. cajan (L.) Millsp, cultivar C11, growing under salinity. The following aspects were analyzed: levels of proteins, amino acids, nitrate, nitrate reductase of roots and the composition of xylem sap amino acids. Results Salinity reduced the proportion of N-transport amino acids ASN (the major component), GLU, ASP and GLN. The effect of the hormone in reducing the adverse effects of salt was related to the reestablishment (totally or partially) of the proportions of GLU, ASN and GLN, transported in the xylem and to the small but significant increase in uptake of nitrate. Increased nitrate uptake, induced by 24- epibrassinolide, was associated with a higher activity of nitrate reductase together with greater levels of free amino acids and soluble proteins in roots of plants cultivated under saline conditions. Conclusion The decline in several components of nitrogen metabolism, induced by salt, was attenuated by 24-epibrassinolide application and accentuated by clotrimazole, indicating the importance of brassinosteroid synthesis for plants growing under salinity.
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allfields	10.1186/1999-3110-54-9 doi (DE-627)SPR036621153 (SPR)1999-3110-54-9-e DE-627 ger DE-627 rakwb eng Dalio, Ronaldo José Durigan verfasserin aut 24-epibrassinolide restores nitrogen metabolism of pigeon pea under saline stress 2013 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Dalio et al.; licensee Springer. 2013. This article is published under license to BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License ( Background Several studies have shown that brassinosteroids attenuate the effects of salt stress. However, nothing is known about their effects on amino acid transport, nor the effects of these hormones on nitrate uptake under saline conditions. This study set out to determine the effects of 24-epibrassinolide, at concentrations of 10-7 M and 0.5 × 10-9 M, and clotrimazole (inhibitor of brassinosteroid synthesis), at 10-4 M, on nitrate uptake and metabolism in plants of C. cajan (L.) Millsp, cultivar C11, growing under salinity. The following aspects were analyzed: levels of proteins, amino acids, nitrate, nitrate reductase of roots and the composition of xylem sap amino acids. Results Salinity reduced the proportion of N-transport amino acids ASN (the major component), GLU, ASP and GLN. The effect of the hormone in reducing the adverse effects of salt was related to the reestablishment (totally or partially) of the proportions of GLU, ASN and GLN, transported in the xylem and to the small but significant increase in uptake of nitrate. Increased nitrate uptake, induced by 24- epibrassinolide, was associated with a higher activity of nitrate reductase together with greater levels of free amino acids and soluble proteins in roots of plants cultivated under saline conditions. Conclusion The decline in several components of nitrogen metabolism, induced by salt, was attenuated by 24-epibrassinolide application and accentuated by clotrimazole, indicating the importance of brassinosteroid synthesis for plants growing under salinity. Brassinosteroid synthesis inhibitor (dpeaa)DE-He213 Nitrate uptake (dpeaa)DE-He213 Nitrogen metabolism (dpeaa)DE-He213 N-transport amino acids (dpeaa)DE-He213 Saline stress (dpeaa)DE-He213 Xylem amino acids (dpeaa)DE-He213 Xylem exudate (dpeaa)DE-He213 Pinheiro, Hildete Prisco aut Sodek, Ladaslav aut Haddad, Claudia Regina Baptista aut Enthalten in Botanical studies Heidelberg : Springer, 2006 54(2013), 1 vom: 21. Aug. (DE-627)56961791X (DE-600)2432110-2 1999-3110 nnns volume:54 year:2013 number:1 day:21 month:08 https://dx.doi.org/10.1186/1999-3110-54-9 kostenfrei Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2031 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2061 GBV_ILN_2111 GBV_ILN_2113 GBV_ILN_2190 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 54 2013 1 21 08
spelling	10.1186/1999-3110-54-9 doi (DE-627)SPR036621153 (SPR)1999-3110-54-9-e DE-627 ger DE-627 rakwb eng Dalio, Ronaldo José Durigan verfasserin aut 24-epibrassinolide restores nitrogen metabolism of pigeon pea under saline stress 2013 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Dalio et al.; licensee Springer. 2013. This article is published under license to BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License ( Background Several studies have shown that brassinosteroids attenuate the effects of salt stress. However, nothing is known about their effects on amino acid transport, nor the effects of these hormones on nitrate uptake under saline conditions. This study set out to determine the effects of 24-epibrassinolide, at concentrations of 10-7 M and 0.5 × 10-9 M, and clotrimazole (inhibitor of brassinosteroid synthesis), at 10-4 M, on nitrate uptake and metabolism in plants of C. cajan (L.) Millsp, cultivar C11, growing under salinity. The following aspects were analyzed: levels of proteins, amino acids, nitrate, nitrate reductase of roots and the composition of xylem sap amino acids. Results Salinity reduced the proportion of N-transport amino acids ASN (the major component), GLU, ASP and GLN. The effect of the hormone in reducing the adverse effects of salt was related to the reestablishment (totally or partially) of the proportions of GLU, ASN and GLN, transported in the xylem and to the small but significant increase in uptake of nitrate. Increased nitrate uptake, induced by 24- epibrassinolide, was associated with a higher activity of nitrate reductase together with greater levels of free amino acids and soluble proteins in roots of plants cultivated under saline conditions. Conclusion The decline in several components of nitrogen metabolism, induced by salt, was attenuated by 24-epibrassinolide application and accentuated by clotrimazole, indicating the importance of brassinosteroid synthesis for plants growing under salinity. Brassinosteroid synthesis inhibitor (dpeaa)DE-He213 Nitrate uptake (dpeaa)DE-He213 Nitrogen metabolism (dpeaa)DE-He213 N-transport amino acids (dpeaa)DE-He213 Saline stress (dpeaa)DE-He213 Xylem amino acids (dpeaa)DE-He213 Xylem exudate (dpeaa)DE-He213 Pinheiro, Hildete Prisco aut Sodek, Ladaslav aut Haddad, Claudia Regina Baptista aut Enthalten in Botanical studies Heidelberg : Springer, 2006 54(2013), 1 vom: 21. Aug. (DE-627)56961791X (DE-600)2432110-2 1999-3110 nnns volume:54 year:2013 number:1 day:21 month:08 https://dx.doi.org/10.1186/1999-3110-54-9 kostenfrei Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2031 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2061 GBV_ILN_2111 GBV_ILN_2113 GBV_ILN_2190 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 54 2013 1 21 08
allfields_unstemmed	10.1186/1999-3110-54-9 doi (DE-627)SPR036621153 (SPR)1999-3110-54-9-e DE-627 ger DE-627 rakwb eng Dalio, Ronaldo José Durigan verfasserin aut 24-epibrassinolide restores nitrogen metabolism of pigeon pea under saline stress 2013 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Dalio et al.; licensee Springer. 2013. This article is published under license to BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License ( Background Several studies have shown that brassinosteroids attenuate the effects of salt stress. However, nothing is known about their effects on amino acid transport, nor the effects of these hormones on nitrate uptake under saline conditions. This study set out to determine the effects of 24-epibrassinolide, at concentrations of 10-7 M and 0.5 × 10-9 M, and clotrimazole (inhibitor of brassinosteroid synthesis), at 10-4 M, on nitrate uptake and metabolism in plants of C. cajan (L.) Millsp, cultivar C11, growing under salinity. The following aspects were analyzed: levels of proteins, amino acids, nitrate, nitrate reductase of roots and the composition of xylem sap amino acids. Results Salinity reduced the proportion of N-transport amino acids ASN (the major component), GLU, ASP and GLN. The effect of the hormone in reducing the adverse effects of salt was related to the reestablishment (totally or partially) of the proportions of GLU, ASN and GLN, transported in the xylem and to the small but significant increase in uptake of nitrate. Increased nitrate uptake, induced by 24- epibrassinolide, was associated with a higher activity of nitrate reductase together with greater levels of free amino acids and soluble proteins in roots of plants cultivated under saline conditions. Conclusion The decline in several components of nitrogen metabolism, induced by salt, was attenuated by 24-epibrassinolide application and accentuated by clotrimazole, indicating the importance of brassinosteroid synthesis for plants growing under salinity. Brassinosteroid synthesis inhibitor (dpeaa)DE-He213 Nitrate uptake (dpeaa)DE-He213 Nitrogen metabolism (dpeaa)DE-He213 N-transport amino acids (dpeaa)DE-He213 Saline stress (dpeaa)DE-He213 Xylem amino acids (dpeaa)DE-He213 Xylem exudate (dpeaa)DE-He213 Pinheiro, Hildete Prisco aut Sodek, Ladaslav aut Haddad, Claudia Regina Baptista aut Enthalten in Botanical studies Heidelberg : Springer, 2006 54(2013), 1 vom: 21. Aug. (DE-627)56961791X (DE-600)2432110-2 1999-3110 nnns volume:54 year:2013 number:1 day:21 month:08 https://dx.doi.org/10.1186/1999-3110-54-9 kostenfrei Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2031 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2061 GBV_ILN_2111 GBV_ILN_2113 GBV_ILN_2190 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 54 2013 1 21 08
allfieldsGer	10.1186/1999-3110-54-9 doi (DE-627)SPR036621153 (SPR)1999-3110-54-9-e DE-627 ger DE-627 rakwb eng Dalio, Ronaldo José Durigan verfasserin aut 24-epibrassinolide restores nitrogen metabolism of pigeon pea under saline stress 2013 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Dalio et al.; licensee Springer. 2013. This article is published under license to BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License ( Background Several studies have shown that brassinosteroids attenuate the effects of salt stress. However, nothing is known about their effects on amino acid transport, nor the effects of these hormones on nitrate uptake under saline conditions. This study set out to determine the effects of 24-epibrassinolide, at concentrations of 10-7 M and 0.5 × 10-9 M, and clotrimazole (inhibitor of brassinosteroid synthesis), at 10-4 M, on nitrate uptake and metabolism in plants of C. cajan (L.) Millsp, cultivar C11, growing under salinity. The following aspects were analyzed: levels of proteins, amino acids, nitrate, nitrate reductase of roots and the composition of xylem sap amino acids. Results Salinity reduced the proportion of N-transport amino acids ASN (the major component), GLU, ASP and GLN. The effect of the hormone in reducing the adverse effects of salt was related to the reestablishment (totally or partially) of the proportions of GLU, ASN and GLN, transported in the xylem and to the small but significant increase in uptake of nitrate. Increased nitrate uptake, induced by 24- epibrassinolide, was associated with a higher activity of nitrate reductase together with greater levels of free amino acids and soluble proteins in roots of plants cultivated under saline conditions. Conclusion The decline in several components of nitrogen metabolism, induced by salt, was attenuated by 24-epibrassinolide application and accentuated by clotrimazole, indicating the importance of brassinosteroid synthesis for plants growing under salinity. Brassinosteroid synthesis inhibitor (dpeaa)DE-He213 Nitrate uptake (dpeaa)DE-He213 Nitrogen metabolism (dpeaa)DE-He213 N-transport amino acids (dpeaa)DE-He213 Saline stress (dpeaa)DE-He213 Xylem amino acids (dpeaa)DE-He213 Xylem exudate (dpeaa)DE-He213 Pinheiro, Hildete Prisco aut Sodek, Ladaslav aut Haddad, Claudia Regina Baptista aut Enthalten in Botanical studies Heidelberg : Springer, 2006 54(2013), 1 vom: 21. Aug. (DE-627)56961791X (DE-600)2432110-2 1999-3110 nnns volume:54 year:2013 number:1 day:21 month:08 https://dx.doi.org/10.1186/1999-3110-54-9 kostenfrei Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2031 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2061 GBV_ILN_2111 GBV_ILN_2113 GBV_ILN_2190 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 54 2013 1 21 08
allfieldsSound	10.1186/1999-3110-54-9 doi (DE-627)SPR036621153 (SPR)1999-3110-54-9-e DE-627 ger DE-627 rakwb eng Dalio, Ronaldo José Durigan verfasserin aut 24-epibrassinolide restores nitrogen metabolism of pigeon pea under saline stress 2013 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Dalio et al.; licensee Springer. 2013. This article is published under license to BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License ( Background Several studies have shown that brassinosteroids attenuate the effects of salt stress. However, nothing is known about their effects on amino acid transport, nor the effects of these hormones on nitrate uptake under saline conditions. This study set out to determine the effects of 24-epibrassinolide, at concentrations of 10-7 M and 0.5 × 10-9 M, and clotrimazole (inhibitor of brassinosteroid synthesis), at 10-4 M, on nitrate uptake and metabolism in plants of C. cajan (L.) Millsp, cultivar C11, growing under salinity. The following aspects were analyzed: levels of proteins, amino acids, nitrate, nitrate reductase of roots and the composition of xylem sap amino acids. Results Salinity reduced the proportion of N-transport amino acids ASN (the major component), GLU, ASP and GLN. The effect of the hormone in reducing the adverse effects of salt was related to the reestablishment (totally or partially) of the proportions of GLU, ASN and GLN, transported in the xylem and to the small but significant increase in uptake of nitrate. Increased nitrate uptake, induced by 24- epibrassinolide, was associated with a higher activity of nitrate reductase together with greater levels of free amino acids and soluble proteins in roots of plants cultivated under saline conditions. Conclusion The decline in several components of nitrogen metabolism, induced by salt, was attenuated by 24-epibrassinolide application and accentuated by clotrimazole, indicating the importance of brassinosteroid synthesis for plants growing under salinity. Brassinosteroid synthesis inhibitor (dpeaa)DE-He213 Nitrate uptake (dpeaa)DE-He213 Nitrogen metabolism (dpeaa)DE-He213 N-transport amino acids (dpeaa)DE-He213 Saline stress (dpeaa)DE-He213 Xylem amino acids (dpeaa)DE-He213 Xylem exudate (dpeaa)DE-He213 Pinheiro, Hildete Prisco aut Sodek, Ladaslav aut Haddad, Claudia Regina Baptista aut Enthalten in Botanical studies Heidelberg : Springer, 2006 54(2013), 1 vom: 21. Aug. (DE-627)56961791X (DE-600)2432110-2 1999-3110 nnns volume:54 year:2013 number:1 day:21 month:08 https://dx.doi.org/10.1186/1999-3110-54-9 kostenfrei Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2031 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2061 GBV_ILN_2111 GBV_ILN_2113 GBV_ILN_2190 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 54 2013 1 21 08
language	English
source	Enthalten in Botanical studies 54(2013), 1 vom: 21. Aug. volume:54 year:2013 number:1 day:21 month:08
sourceStr	Enthalten in Botanical studies 54(2013), 1 vom: 21. Aug. volume:54 year:2013 number:1 day:21 month:08
format_phy_str_mv	Article
institution	findex.gbv.de
topic_facet	Brassinosteroid synthesis inhibitor Nitrate uptake Nitrogen metabolism N-transport amino acids Saline stress Xylem amino acids Xylem exudate
isfreeaccess_bool	true
container_title	Botanical studies
authorswithroles_txt_mv	Dalio, Ronaldo José Durigan @@aut@@ Pinheiro, Hildete Prisco @@aut@@ Sodek, Ladaslav @@aut@@ Haddad, Claudia Regina Baptista @@aut@@
publishDateDaySort_date	2013-08-21T00:00:00Z
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id	SPR036621153
language_de	englisch
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This article is published under license to BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (</subfield></datafield><datafield tag="520" ind1=" " ind2=" "><subfield code="a">Background Several studies have shown that brassinosteroids attenuate the effects of salt stress. However, nothing is known about their effects on amino acid transport, nor the effects of these hormones on nitrate uptake under saline conditions. This study set out to determine the effects of 24-epibrassinolide, at concentrations of 10-7 M and 0.5 × 10-9 M, and clotrimazole (inhibitor of brassinosteroid synthesis), at 10-4 M, on nitrate uptake and metabolism in plants of C. cajan (L.) Millsp, cultivar C11, growing under salinity. The following aspects were analyzed: levels of proteins, amino acids, nitrate, nitrate reductase of roots and the composition of xylem sap amino acids. Results Salinity reduced the proportion of N-transport amino acids ASN (the major component), GLU, ASP and GLN. The effect of the hormone in reducing the adverse effects of salt was related to the reestablishment (totally or partially) of the proportions of GLU, ASN and GLN, transported in the xylem and to the small but significant increase in uptake of nitrate. Increased nitrate uptake, induced by 24- epibrassinolide, was associated with a higher activity of nitrate reductase together with greater levels of free amino acids and soluble proteins in roots of plants cultivated under saline conditions. 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author	Dalio, Ronaldo José Durigan
spellingShingle	Dalio, Ronaldo José Durigan misc Brassinosteroid synthesis inhibitor misc Nitrate uptake misc Nitrogen metabolism misc N-transport amino acids misc Saline stress misc Xylem amino acids misc Xylem exudate 24-epibrassinolide restores nitrogen metabolism of pigeon pea under saline stress
authorStr	Dalio, Ronaldo José Durigan
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topic_title	24-epibrassinolide restores nitrogen metabolism of pigeon pea under saline stress Brassinosteroid synthesis inhibitor (dpeaa)DE-He213 Nitrate uptake (dpeaa)DE-He213 Nitrogen metabolism (dpeaa)DE-He213 N-transport amino acids (dpeaa)DE-He213 Saline stress (dpeaa)DE-He213 Xylem amino acids (dpeaa)DE-He213 Xylem exudate (dpeaa)DE-He213
topic	misc Brassinosteroid synthesis inhibitor misc Nitrate uptake misc Nitrogen metabolism misc N-transport amino acids misc Saline stress misc Xylem amino acids misc Xylem exudate
topic_unstemmed	misc Brassinosteroid synthesis inhibitor misc Nitrate uptake misc Nitrogen metabolism misc N-transport amino acids misc Saline stress misc Xylem amino acids misc Xylem exudate
topic_browse	misc Brassinosteroid synthesis inhibitor misc Nitrate uptake misc Nitrogen metabolism misc N-transport amino acids misc Saline stress misc Xylem amino acids misc Xylem exudate
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title	24-epibrassinolide restores nitrogen metabolism of pigeon pea under saline stress
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title_full	24-epibrassinolide restores nitrogen metabolism of pigeon pea under saline stress
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author_browse	Dalio, Ronaldo José Durigan Pinheiro, Hildete Prisco Sodek, Ladaslav Haddad, Claudia Regina Baptista
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author-letter	Dalio, Ronaldo José Durigan
doi_str_mv	10.1186/1999-3110-54-9
title_sort	24-epibrassinolide restores nitrogen metabolism of pigeon pea under saline stress
title_auth	24-epibrassinolide restores nitrogen metabolism of pigeon pea under saline stress
abstract	Background Several studies have shown that brassinosteroids attenuate the effects of salt stress. However, nothing is known about their effects on amino acid transport, nor the effects of these hormones on nitrate uptake under saline conditions. This study set out to determine the effects of 24-epibrassinolide, at concentrations of 10-7 M and 0.5 × 10-9 M, and clotrimazole (inhibitor of brassinosteroid synthesis), at 10-4 M, on nitrate uptake and metabolism in plants of C. cajan (L.) Millsp, cultivar C11, growing under salinity. The following aspects were analyzed: levels of proteins, amino acids, nitrate, nitrate reductase of roots and the composition of xylem sap amino acids. Results Salinity reduced the proportion of N-transport amino acids ASN (the major component), GLU, ASP and GLN. The effect of the hormone in reducing the adverse effects of salt was related to the reestablishment (totally or partially) of the proportions of GLU, ASN and GLN, transported in the xylem and to the small but significant increase in uptake of nitrate. Increased nitrate uptake, induced by 24- epibrassinolide, was associated with a higher activity of nitrate reductase together with greater levels of free amino acids and soluble proteins in roots of plants cultivated under saline conditions. Conclusion The decline in several components of nitrogen metabolism, induced by salt, was attenuated by 24-epibrassinolide application and accentuated by clotrimazole, indicating the importance of brassinosteroid synthesis for plants growing under salinity. © Dalio et al.; licensee Springer. 2013. This article is published under license to BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (
abstractGer	Background Several studies have shown that brassinosteroids attenuate the effects of salt stress. However, nothing is known about their effects on amino acid transport, nor the effects of these hormones on nitrate uptake under saline conditions. This study set out to determine the effects of 24-epibrassinolide, at concentrations of 10-7 M and 0.5 × 10-9 M, and clotrimazole (inhibitor of brassinosteroid synthesis), at 10-4 M, on nitrate uptake and metabolism in plants of C. cajan (L.) Millsp, cultivar C11, growing under salinity. The following aspects were analyzed: levels of proteins, amino acids, nitrate, nitrate reductase of roots and the composition of xylem sap amino acids. Results Salinity reduced the proportion of N-transport amino acids ASN (the major component), GLU, ASP and GLN. The effect of the hormone in reducing the adverse effects of salt was related to the reestablishment (totally or partially) of the proportions of GLU, ASN and GLN, transported in the xylem and to the small but significant increase in uptake of nitrate. Increased nitrate uptake, induced by 24- epibrassinolide, was associated with a higher activity of nitrate reductase together with greater levels of free amino acids and soluble proteins in roots of plants cultivated under saline conditions. Conclusion The decline in several components of nitrogen metabolism, induced by salt, was attenuated by 24-epibrassinolide application and accentuated by clotrimazole, indicating the importance of brassinosteroid synthesis for plants growing under salinity. © Dalio et al.; licensee Springer. 2013. This article is published under license to BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (
abstract_unstemmed	Background Several studies have shown that brassinosteroids attenuate the effects of salt stress. However, nothing is known about their effects on amino acid transport, nor the effects of these hormones on nitrate uptake under saline conditions. This study set out to determine the effects of 24-epibrassinolide, at concentrations of 10-7 M and 0.5 × 10-9 M, and clotrimazole (inhibitor of brassinosteroid synthesis), at 10-4 M, on nitrate uptake and metabolism in plants of C. cajan (L.) Millsp, cultivar C11, growing under salinity. The following aspects were analyzed: levels of proteins, amino acids, nitrate, nitrate reductase of roots and the composition of xylem sap amino acids. Results Salinity reduced the proportion of N-transport amino acids ASN (the major component), GLU, ASP and GLN. The effect of the hormone in reducing the adverse effects of salt was related to the reestablishment (totally or partially) of the proportions of GLU, ASN and GLN, transported in the xylem and to the small but significant increase in uptake of nitrate. Increased nitrate uptake, induced by 24- epibrassinolide, was associated with a higher activity of nitrate reductase together with greater levels of free amino acids and soluble proteins in roots of plants cultivated under saline conditions. Conclusion The decline in several components of nitrogen metabolism, induced by salt, was attenuated by 24-epibrassinolide application and accentuated by clotrimazole, indicating the importance of brassinosteroid synthesis for plants growing under salinity. © Dalio et al.; licensee Springer. 2013. This article is published under license to BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (
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title_short	24-epibrassinolide restores nitrogen metabolism of pigeon pea under saline stress
url	https://dx.doi.org/10.1186/1999-3110-54-9
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24-epibrassinolide restores nitrogen metabolism of pigeon pea under saline stress

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