Role of auxin (IAA) in the regulation of slow vacuolar (SV) channels and the volume of red beet taproot vacuoles

Background Auxin (IAA) is a central player in plant cell growth. In contrast to the well-established function of the plasma membrane in plant cell expansion, little is known about the role of the vacuolar membrane (tonoplast) in this process. Results It was found that under symmetrical 100 mM $ K^{+...
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Autor*in:	Burdach, Zbigniew [verfasserIn] Siemieniuk, Agnieszka Trela, Zenon Kurtyka, Renata Karcz, Waldemar

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2018

Schlagwörter:	L. IAA (indole-3-acetic acid) SV channels Vacuole Vacuolar volume

Anmerkung:	© The Author(s). 2018

Übergeordnetes Werk:	Enthalten in: BMC plant biology - London : BioMed Central, 2001, 18(2018), 1 vom: 04. Juni
Übergeordnetes Werk:	volume:18 ; year:2018 ; number:1 ; day:04 ; month:06

Links:	Volltext

DOI / URN:	10.1186/s12870-018-1321-6

Katalog-ID:	SPR027305996

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520			\|a Background Auxin (IAA) is a central player in plant cell growth. In contrast to the well-established function of the plasma membrane in plant cell expansion, little is known about the role of the vacuolar membrane (tonoplast) in this process. Results It was found that under symmetrical 100 mM $ K^{+} $ and 100 μM cytoplasmic $ Ca^{2+} $ the macroscopic currents showed a typical slow activation and a strong outward rectification of the steady-state currents. The addition of IAA at a final concentration of 1 μM to the bath medium stimulated the SV currents, whereas at 0.1 and 10 μM slight inhibition of SV currents was observed. The time constant, τ, decreased in the presence of this hormone. When single channels were analyzed, an increase in their activity was recorded with IAA compared to the control. The single-channel recordings that were obtained in the presence of IAA showed that auxin increased the amplitude of the single-channel currents. Interestingly, the addition of IAA to the bath medium with the same composition as the one that was used in the patch-clamp experiments showed that auxin decreased the volume of the vacuoles. Conclusions It is suggested that the SV channels and the volume of red beet taproot vacuoles are modulated by auxin (IAA).
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matchkey_str	article:14712229:2018----::oefuiianhrgltoosovcoascanladhvlmo
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allfields	10.1186/s12870-018-1321-6 doi (DE-627)SPR027305996 (SPR)s12870-018-1321-6-e DE-627 ger DE-627 rakwb eng Burdach, Zbigniew verfasserin aut Role of auxin (IAA) in the regulation of slow vacuolar (SV) channels and the volume of red beet taproot vacuoles 2018 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © The Author(s). 2018 Background Auxin (IAA) is a central player in plant cell growth. In contrast to the well-established function of the plasma membrane in plant cell expansion, little is known about the role of the vacuolar membrane (tonoplast) in this process. Results It was found that under symmetrical 100 mM $ K^{+} $ and 100 μM cytoplasmic $ Ca^{2+} $ the macroscopic currents showed a typical slow activation and a strong outward rectification of the steady-state currents. The addition of IAA at a final concentration of 1 μM to the bath medium stimulated the SV currents, whereas at 0.1 and 10 μM slight inhibition of SV currents was observed. The time constant, τ, decreased in the presence of this hormone. When single channels were analyzed, an increase in their activity was recorded with IAA compared to the control. The single-channel recordings that were obtained in the presence of IAA showed that auxin increased the amplitude of the single-channel currents. Interestingly, the addition of IAA to the bath medium with the same composition as the one that was used in the patch-clamp experiments showed that auxin decreased the volume of the vacuoles. Conclusions It is suggested that the SV channels and the volume of red beet taproot vacuoles are modulated by auxin (IAA). L. (dpeaa)DE-He213 IAA (indole-3-acetic acid) (dpeaa)DE-He213 SV channels (dpeaa)DE-He213 Vacuole (dpeaa)DE-He213 Vacuolar volume (dpeaa)DE-He213 Siemieniuk, Agnieszka aut Trela, Zenon aut Kurtyka, Renata aut Karcz, Waldemar aut Enthalten in BMC plant biology London : BioMed Central, 2001 18(2018), 1 vom: 04. Juni (DE-627)335489060 (DE-600)2059868-3 1471-2229 nnns volume:18 year:2018 number:1 day:04 month:06 https://dx.doi.org/10.1186/s12870-018-1321-6 kostenfrei Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 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_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_224 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 18 2018 1 04 06
spelling	10.1186/s12870-018-1321-6 doi (DE-627)SPR027305996 (SPR)s12870-018-1321-6-e DE-627 ger DE-627 rakwb eng Burdach, Zbigniew verfasserin aut Role of auxin (IAA) in the regulation of slow vacuolar (SV) channels and the volume of red beet taproot vacuoles 2018 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © The Author(s). 2018 Background Auxin (IAA) is a central player in plant cell growth. In contrast to the well-established function of the plasma membrane in plant cell expansion, little is known about the role of the vacuolar membrane (tonoplast) in this process. Results It was found that under symmetrical 100 mM $ K^{+} $ and 100 μM cytoplasmic $ Ca^{2+} $ the macroscopic currents showed a typical slow activation and a strong outward rectification of the steady-state currents. The addition of IAA at a final concentration of 1 μM to the bath medium stimulated the SV currents, whereas at 0.1 and 10 μM slight inhibition of SV currents was observed. The time constant, τ, decreased in the presence of this hormone. When single channels were analyzed, an increase in their activity was recorded with IAA compared to the control. The single-channel recordings that were obtained in the presence of IAA showed that auxin increased the amplitude of the single-channel currents. Interestingly, the addition of IAA to the bath medium with the same composition as the one that was used in the patch-clamp experiments showed that auxin decreased the volume of the vacuoles. Conclusions It is suggested that the SV channels and the volume of red beet taproot vacuoles are modulated by auxin (IAA). L. (dpeaa)DE-He213 IAA (indole-3-acetic acid) (dpeaa)DE-He213 SV channels (dpeaa)DE-He213 Vacuole (dpeaa)DE-He213 Vacuolar volume (dpeaa)DE-He213 Siemieniuk, Agnieszka aut Trela, Zenon aut Kurtyka, Renata aut Karcz, Waldemar aut Enthalten in BMC plant biology London : BioMed Central, 2001 18(2018), 1 vom: 04. Juni (DE-627)335489060 (DE-600)2059868-3 1471-2229 nnns volume:18 year:2018 number:1 day:04 month:06 https://dx.doi.org/10.1186/s12870-018-1321-6 kostenfrei Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 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_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_224 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 18 2018 1 04 06
allfields_unstemmed	10.1186/s12870-018-1321-6 doi (DE-627)SPR027305996 (SPR)s12870-018-1321-6-e DE-627 ger DE-627 rakwb eng Burdach, Zbigniew verfasserin aut Role of auxin (IAA) in the regulation of slow vacuolar (SV) channels and the volume of red beet taproot vacuoles 2018 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © The Author(s). 2018 Background Auxin (IAA) is a central player in plant cell growth. In contrast to the well-established function of the plasma membrane in plant cell expansion, little is known about the role of the vacuolar membrane (tonoplast) in this process. Results It was found that under symmetrical 100 mM $ K^{+} $ and 100 μM cytoplasmic $ Ca^{2+} $ the macroscopic currents showed a typical slow activation and a strong outward rectification of the steady-state currents. The addition of IAA at a final concentration of 1 μM to the bath medium stimulated the SV currents, whereas at 0.1 and 10 μM slight inhibition of SV currents was observed. The time constant, τ, decreased in the presence of this hormone. When single channels were analyzed, an increase in their activity was recorded with IAA compared to the control. The single-channel recordings that were obtained in the presence of IAA showed that auxin increased the amplitude of the single-channel currents. Interestingly, the addition of IAA to the bath medium with the same composition as the one that was used in the patch-clamp experiments showed that auxin decreased the volume of the vacuoles. Conclusions It is suggested that the SV channels and the volume of red beet taproot vacuoles are modulated by auxin (IAA). L. (dpeaa)DE-He213 IAA (indole-3-acetic acid) (dpeaa)DE-He213 SV channels (dpeaa)DE-He213 Vacuole (dpeaa)DE-He213 Vacuolar volume (dpeaa)DE-He213 Siemieniuk, Agnieszka aut Trela, Zenon aut Kurtyka, Renata aut Karcz, Waldemar aut Enthalten in BMC plant biology London : BioMed Central, 2001 18(2018), 1 vom: 04. Juni (DE-627)335489060 (DE-600)2059868-3 1471-2229 nnns volume:18 year:2018 number:1 day:04 month:06 https://dx.doi.org/10.1186/s12870-018-1321-6 kostenfrei Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 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_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_224 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 18 2018 1 04 06
allfieldsGer	10.1186/s12870-018-1321-6 doi (DE-627)SPR027305996 (SPR)s12870-018-1321-6-e DE-627 ger DE-627 rakwb eng Burdach, Zbigniew verfasserin aut Role of auxin (IAA) in the regulation of slow vacuolar (SV) channels and the volume of red beet taproot vacuoles 2018 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © The Author(s). 2018 Background Auxin (IAA) is a central player in plant cell growth. In contrast to the well-established function of the plasma membrane in plant cell expansion, little is known about the role of the vacuolar membrane (tonoplast) in this process. Results It was found that under symmetrical 100 mM $ K^{+} $ and 100 μM cytoplasmic $ Ca^{2+} $ the macroscopic currents showed a typical slow activation and a strong outward rectification of the steady-state currents. The addition of IAA at a final concentration of 1 μM to the bath medium stimulated the SV currents, whereas at 0.1 and 10 μM slight inhibition of SV currents was observed. The time constant, τ, decreased in the presence of this hormone. When single channels were analyzed, an increase in their activity was recorded with IAA compared to the control. The single-channel recordings that were obtained in the presence of IAA showed that auxin increased the amplitude of the single-channel currents. Interestingly, the addition of IAA to the bath medium with the same composition as the one that was used in the patch-clamp experiments showed that auxin decreased the volume of the vacuoles. Conclusions It is suggested that the SV channels and the volume of red beet taproot vacuoles are modulated by auxin (IAA). L. (dpeaa)DE-He213 IAA (indole-3-acetic acid) (dpeaa)DE-He213 SV channels (dpeaa)DE-He213 Vacuole (dpeaa)DE-He213 Vacuolar volume (dpeaa)DE-He213 Siemieniuk, Agnieszka aut Trela, Zenon aut Kurtyka, Renata aut Karcz, Waldemar aut Enthalten in BMC plant biology London : BioMed Central, 2001 18(2018), 1 vom: 04. Juni (DE-627)335489060 (DE-600)2059868-3 1471-2229 nnns volume:18 year:2018 number:1 day:04 month:06 https://dx.doi.org/10.1186/s12870-018-1321-6 kostenfrei Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 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_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_224 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 18 2018 1 04 06
allfieldsSound	10.1186/s12870-018-1321-6 doi (DE-627)SPR027305996 (SPR)s12870-018-1321-6-e DE-627 ger DE-627 rakwb eng Burdach, Zbigniew verfasserin aut Role of auxin (IAA) in the regulation of slow vacuolar (SV) channels and the volume of red beet taproot vacuoles 2018 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © The Author(s). 2018 Background Auxin (IAA) is a central player in plant cell growth. In contrast to the well-established function of the plasma membrane in plant cell expansion, little is known about the role of the vacuolar membrane (tonoplast) in this process. Results It was found that under symmetrical 100 mM $ K^{+} $ and 100 μM cytoplasmic $ Ca^{2+} $ the macroscopic currents showed a typical slow activation and a strong outward rectification of the steady-state currents. The addition of IAA at a final concentration of 1 μM to the bath medium stimulated the SV currents, whereas at 0.1 and 10 μM slight inhibition of SV currents was observed. The time constant, τ, decreased in the presence of this hormone. When single channels were analyzed, an increase in their activity was recorded with IAA compared to the control. The single-channel recordings that were obtained in the presence of IAA showed that auxin increased the amplitude of the single-channel currents. Interestingly, the addition of IAA to the bath medium with the same composition as the one that was used in the patch-clamp experiments showed that auxin decreased the volume of the vacuoles. Conclusions It is suggested that the SV channels and the volume of red beet taproot vacuoles are modulated by auxin (IAA). L. (dpeaa)DE-He213 IAA (indole-3-acetic acid) (dpeaa)DE-He213 SV channels (dpeaa)DE-He213 Vacuole (dpeaa)DE-He213 Vacuolar volume (dpeaa)DE-He213 Siemieniuk, Agnieszka aut Trela, Zenon aut Kurtyka, Renata aut Karcz, Waldemar aut Enthalten in BMC plant biology London : BioMed Central, 2001 18(2018), 1 vom: 04. Juni (DE-627)335489060 (DE-600)2059868-3 1471-2229 nnns volume:18 year:2018 number:1 day:04 month:06 https://dx.doi.org/10.1186/s12870-018-1321-6 kostenfrei Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 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_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_224 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 18 2018 1 04 06
language	English
source	Enthalten in BMC plant biology 18(2018), 1 vom: 04. Juni volume:18 year:2018 number:1 day:04 month:06
sourceStr	Enthalten in BMC plant biology 18(2018), 1 vom: 04. Juni volume:18 year:2018 number:1 day:04 month:06
format_phy_str_mv	Article
institution	findex.gbv.de
topic_facet	L. IAA (indole-3-acetic acid) SV channels Vacuole Vacuolar volume
isfreeaccess_bool	true
container_title	BMC plant biology
authorswithroles_txt_mv	Burdach, Zbigniew @@aut@@ Siemieniuk, Agnieszka @@aut@@ Trela, Zenon @@aut@@ Kurtyka, Renata @@aut@@ Karcz, Waldemar @@aut@@
publishDateDaySort_date	2018-06-04T00:00:00Z
hierarchy_top_id	335489060
id	SPR027305996
language_de	englisch
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author	Burdach, Zbigniew
spellingShingle	Burdach, Zbigniew misc L. misc IAA (indole-3-acetic acid) misc SV channels misc Vacuole misc Vacuolar volume Role of auxin (IAA) in the regulation of slow vacuolar (SV) channels and the volume of red beet taproot vacuoles
authorStr	Burdach, Zbigniew
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topic_title	Role of auxin (IAA) in the regulation of slow vacuolar (SV) channels and the volume of red beet taproot vacuoles L. (dpeaa)DE-He213 IAA (indole-3-acetic acid) (dpeaa)DE-He213 SV channels (dpeaa)DE-He213 Vacuole (dpeaa)DE-He213 Vacuolar volume (dpeaa)DE-He213
topic	misc L. misc IAA (indole-3-acetic acid) misc SV channels misc Vacuole misc Vacuolar volume
topic_unstemmed	misc L. misc IAA (indole-3-acetic acid) misc SV channels misc Vacuole misc Vacuolar volume
topic_browse	misc L. misc IAA (indole-3-acetic acid) misc SV channels misc Vacuole misc Vacuolar volume
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title	Role of auxin (IAA) in the regulation of slow vacuolar (SV) channels and the volume of red beet taproot vacuoles
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title_full	Role of auxin (IAA) in the regulation of slow vacuolar (SV) channels and the volume of red beet taproot vacuoles
author_sort	Burdach, Zbigniew
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author_browse	Burdach, Zbigniew Siemieniuk, Agnieszka Trela, Zenon Kurtyka, Renata Karcz, Waldemar
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doi_str_mv	10.1186/s12870-018-1321-6
title_sort	role of auxin (iaa) in the regulation of slow vacuolar (sv) channels and the volume of red beet taproot vacuoles
title_auth	Role of auxin (IAA) in the regulation of slow vacuolar (SV) channels and the volume of red beet taproot vacuoles
abstract	Background Auxin (IAA) is a central player in plant cell growth. In contrast to the well-established function of the plasma membrane in plant cell expansion, little is known about the role of the vacuolar membrane (tonoplast) in this process. Results It was found that under symmetrical 100 mM $ K^{+} $ and 100 μM cytoplasmic $ Ca^{2+} $ the macroscopic currents showed a typical slow activation and a strong outward rectification of the steady-state currents. The addition of IAA at a final concentration of 1 μM to the bath medium stimulated the SV currents, whereas at 0.1 and 10 μM slight inhibition of SV currents was observed. The time constant, τ, decreased in the presence of this hormone. When single channels were analyzed, an increase in their activity was recorded with IAA compared to the control. The single-channel recordings that were obtained in the presence of IAA showed that auxin increased the amplitude of the single-channel currents. Interestingly, the addition of IAA to the bath medium with the same composition as the one that was used in the patch-clamp experiments showed that auxin decreased the volume of the vacuoles. Conclusions It is suggested that the SV channels and the volume of red beet taproot vacuoles are modulated by auxin (IAA). © The Author(s). 2018
abstractGer	Background Auxin (IAA) is a central player in plant cell growth. In contrast to the well-established function of the plasma membrane in plant cell expansion, little is known about the role of the vacuolar membrane (tonoplast) in this process. Results It was found that under symmetrical 100 mM $ K^{+} $ and 100 μM cytoplasmic $ Ca^{2+} $ the macroscopic currents showed a typical slow activation and a strong outward rectification of the steady-state currents. The addition of IAA at a final concentration of 1 μM to the bath medium stimulated the SV currents, whereas at 0.1 and 10 μM slight inhibition of SV currents was observed. The time constant, τ, decreased in the presence of this hormone. When single channels were analyzed, an increase in their activity was recorded with IAA compared to the control. The single-channel recordings that were obtained in the presence of IAA showed that auxin increased the amplitude of the single-channel currents. Interestingly, the addition of IAA to the bath medium with the same composition as the one that was used in the patch-clamp experiments showed that auxin decreased the volume of the vacuoles. Conclusions It is suggested that the SV channels and the volume of red beet taproot vacuoles are modulated by auxin (IAA). © The Author(s). 2018
abstract_unstemmed	Background Auxin (IAA) is a central player in plant cell growth. In contrast to the well-established function of the plasma membrane in plant cell expansion, little is known about the role of the vacuolar membrane (tonoplast) in this process. Results It was found that under symmetrical 100 mM $ K^{+} $ and 100 μM cytoplasmic $ Ca^{2+} $ the macroscopic currents showed a typical slow activation and a strong outward rectification of the steady-state currents. The addition of IAA at a final concentration of 1 μM to the bath medium stimulated the SV currents, whereas at 0.1 and 10 μM slight inhibition of SV currents was observed. The time constant, τ, decreased in the presence of this hormone. When single channels were analyzed, an increase in their activity was recorded with IAA compared to the control. The single-channel recordings that were obtained in the presence of IAA showed that auxin increased the amplitude of the single-channel currents. Interestingly, the addition of IAA to the bath medium with the same composition as the one that was used in the patch-clamp experiments showed that auxin decreased the volume of the vacuoles. Conclusions It is suggested that the SV channels and the volume of red beet taproot vacuoles are modulated by auxin (IAA). © The Author(s). 2018
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title_short	Role of auxin (IAA) in the regulation of slow vacuolar (SV) channels and the volume of red beet taproot vacuoles
url	https://dx.doi.org/10.1186/s12870-018-1321-6
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author2	Siemieniuk, Agnieszka Trela, Zenon Kurtyka, Renata Karcz, Waldemar
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up_date	2024-07-04T01:17:02.016Z
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Role of auxin (IAA) in the regulation of slow vacuolar (SV) channels and the volume of red beet taproot vacuoles

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