Circadian regulation of leaf hydraulic conductance in sunflower (Helianthus annuus L. cv Margot)
The circadian regulation of leaf hydraulic conductance (Kleaf) was investigated in Helianthus annuus L. (sunflower). Kleaf was measured with an high pressure flow meter during the light and dark period from plants growing at a photoperiod of 12 h. Kleaf was 4.0 e−4 kg s−1 m−2 MPa−1 during the light...
Ausführliche Beschreibung
Autor*in: |
NARDINI, ANDREA [verfasserIn] SALLEO, SEBASTIANO [verfasserIn] ANDRI, SERGIO [verfasserIn] |
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E-Artikel |
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Erschienen: |
Oxford, UK: Blackwell Science Ltd ; 2005 |
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Online-Ressource |
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Reproduktion: |
2005 ; Blackwell Publishing Journal Backfiles 1879-2005 |
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Übergeordnetes Werk: |
In: Plant, cell & environment - Oxford [u.a.] : Wiley-Blackwell, 1978, 28(2005), 6, Seite 0 |
Übergeordnetes Werk: |
volume:28 ; year:2005 ; number:6 ; pages:0 |
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DOI / URN: |
10.1111/j.1365-3040.2005.01320.x |
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520 | |a The circadian regulation of leaf hydraulic conductance (Kleaf) was investigated in Helianthus annuus L. (sunflower). Kleaf was measured with an high pressure flow meter during the light and dark period from plants growing at a photoperiod of 12 h. Kleaf was 4.0 e−4 kg s−1 m−2 MPa−1 during the light period (LL) and 30–40% less during the dark period (DL). When photoperiod was inverted and leaves were measured for Kleaf at their subjective light or dark periods, Kleaf adjusted to the new conditions requiring 48 h for increasing from dark to light values and 4 d for the opposite transition. Plants put in continuous dark showed Kleaf oscillating from light to dark values in phase with their subjective photoperiod indicating that Kleaf changes were induced by the circadian clock. Several cuts through the minor veins reduced leaf hydraulic resistance (Rleaf) of both LL and DL to the same value (1.0 e + 3 MPa m2 s kg−1) that equalled the vascular resistance (Rv). The contribution of the non-vascular leaf resistance (Rnv) to Rleaf was of 71.9% in DL and of 58.4% in LL. The dominant Rnv was shown to be reversibly modulated by mercurials, suggesting that aquaporins play a role in diurnal changes of Kleaf. | ||
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10.1111/j.1365-3040.2005.01320.x doi (DE-627)NLEJ243837127 DE-627 ger DE-627 rakwb NARDINI, ANDREA verfasserin aut Circadian regulation of leaf hydraulic conductance in sunflower (Helianthus annuus L. cv Margot) Oxford, UK Blackwell Science Ltd 2005 Online-Ressource nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier The circadian regulation of leaf hydraulic conductance (Kleaf) was investigated in Helianthus annuus L. (sunflower). Kleaf was measured with an high pressure flow meter during the light and dark period from plants growing at a photoperiod of 12 h. Kleaf was 4.0 e−4 kg s−1 m−2 MPa−1 during the light period (LL) and 30–40% less during the dark period (DL). When photoperiod was inverted and leaves were measured for Kleaf at their subjective light or dark periods, Kleaf adjusted to the new conditions requiring 48 h for increasing from dark to light values and 4 d for the opposite transition. Plants put in continuous dark showed Kleaf oscillating from light to dark values in phase with their subjective photoperiod indicating that Kleaf changes were induced by the circadian clock. Several cuts through the minor veins reduced leaf hydraulic resistance (Rleaf) of both LL and DL to the same value (1.0 e + 3 MPa m2 s kg−1) that equalled the vascular resistance (Rv). The contribution of the non-vascular leaf resistance (Rnv) to Rleaf was of 71.9% in DL and of 58.4% in LL. The dominant Rnv was shown to be reversibly modulated by mercurials, suggesting that aquaporins play a role in diurnal changes of Kleaf. 2005 Blackwell Publishing Journal Backfiles 1879-2005 |2005|||||||||| aquaporins SALLEO, SEBASTIANO verfasserin aut ANDRI, SERGIO verfasserin aut In Plant, cell & environment Oxford [u.a.] : Wiley-Blackwell, 1978 28(2005), 6, Seite 0 Online-Ressource (DE-627)NLEJ243926944 (DE-600)2020843-1 1365-3040 nnns volume:28 year:2005 number:6 pages:0 http://dx.doi.org/10.1111/j.1365-3040.2005.01320.x text/html Verlag Deutschlandweit zugänglich Volltext GBV_USEFLAG_U ZDB-1-DJB GBV_NL_ARTICLE AR 28 2005 6 0 |
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10.1111/j.1365-3040.2005.01320.x doi (DE-627)NLEJ243837127 DE-627 ger DE-627 rakwb NARDINI, ANDREA verfasserin aut Circadian regulation of leaf hydraulic conductance in sunflower (Helianthus annuus L. cv Margot) Oxford, UK Blackwell Science Ltd 2005 Online-Ressource nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier The circadian regulation of leaf hydraulic conductance (Kleaf) was investigated in Helianthus annuus L. (sunflower). Kleaf was measured with an high pressure flow meter during the light and dark period from plants growing at a photoperiod of 12 h. Kleaf was 4.0 e−4 kg s−1 m−2 MPa−1 during the light period (LL) and 30–40% less during the dark period (DL). When photoperiod was inverted and leaves were measured for Kleaf at their subjective light or dark periods, Kleaf adjusted to the new conditions requiring 48 h for increasing from dark to light values and 4 d for the opposite transition. Plants put in continuous dark showed Kleaf oscillating from light to dark values in phase with their subjective photoperiod indicating that Kleaf changes were induced by the circadian clock. Several cuts through the minor veins reduced leaf hydraulic resistance (Rleaf) of both LL and DL to the same value (1.0 e + 3 MPa m2 s kg−1) that equalled the vascular resistance (Rv). The contribution of the non-vascular leaf resistance (Rnv) to Rleaf was of 71.9% in DL and of 58.4% in LL. The dominant Rnv was shown to be reversibly modulated by mercurials, suggesting that aquaporins play a role in diurnal changes of Kleaf. 2005 Blackwell Publishing Journal Backfiles 1879-2005 |2005|||||||||| aquaporins SALLEO, SEBASTIANO verfasserin aut ANDRI, SERGIO verfasserin aut In Plant, cell & environment Oxford [u.a.] : Wiley-Blackwell, 1978 28(2005), 6, Seite 0 Online-Ressource (DE-627)NLEJ243926944 (DE-600)2020843-1 1365-3040 nnns volume:28 year:2005 number:6 pages:0 http://dx.doi.org/10.1111/j.1365-3040.2005.01320.x text/html Verlag Deutschlandweit zugänglich Volltext GBV_USEFLAG_U ZDB-1-DJB GBV_NL_ARTICLE AR 28 2005 6 0 |
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10.1111/j.1365-3040.2005.01320.x doi (DE-627)NLEJ243837127 DE-627 ger DE-627 rakwb NARDINI, ANDREA verfasserin aut Circadian regulation of leaf hydraulic conductance in sunflower (Helianthus annuus L. cv Margot) Oxford, UK Blackwell Science Ltd 2005 Online-Ressource nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier The circadian regulation of leaf hydraulic conductance (Kleaf) was investigated in Helianthus annuus L. (sunflower). Kleaf was measured with an high pressure flow meter during the light and dark period from plants growing at a photoperiod of 12 h. Kleaf was 4.0 e−4 kg s−1 m−2 MPa−1 during the light period (LL) and 30–40% less during the dark period (DL). When photoperiod was inverted and leaves were measured for Kleaf at their subjective light or dark periods, Kleaf adjusted to the new conditions requiring 48 h for increasing from dark to light values and 4 d for the opposite transition. Plants put in continuous dark showed Kleaf oscillating from light to dark values in phase with their subjective photoperiod indicating that Kleaf changes were induced by the circadian clock. Several cuts through the minor veins reduced leaf hydraulic resistance (Rleaf) of both LL and DL to the same value (1.0 e + 3 MPa m2 s kg−1) that equalled the vascular resistance (Rv). The contribution of the non-vascular leaf resistance (Rnv) to Rleaf was of 71.9% in DL and of 58.4% in LL. The dominant Rnv was shown to be reversibly modulated by mercurials, suggesting that aquaporins play a role in diurnal changes of Kleaf. 2005 Blackwell Publishing Journal Backfiles 1879-2005 |2005|||||||||| aquaporins SALLEO, SEBASTIANO verfasserin aut ANDRI, SERGIO verfasserin aut In Plant, cell & environment Oxford [u.a.] : Wiley-Blackwell, 1978 28(2005), 6, Seite 0 Online-Ressource (DE-627)NLEJ243926944 (DE-600)2020843-1 1365-3040 nnns volume:28 year:2005 number:6 pages:0 http://dx.doi.org/10.1111/j.1365-3040.2005.01320.x text/html Verlag Deutschlandweit zugänglich Volltext GBV_USEFLAG_U ZDB-1-DJB GBV_NL_ARTICLE AR 28 2005 6 0 |
allfieldsGer |
10.1111/j.1365-3040.2005.01320.x doi (DE-627)NLEJ243837127 DE-627 ger DE-627 rakwb NARDINI, ANDREA verfasserin aut Circadian regulation of leaf hydraulic conductance in sunflower (Helianthus annuus L. cv Margot) Oxford, UK Blackwell Science Ltd 2005 Online-Ressource nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier The circadian regulation of leaf hydraulic conductance (Kleaf) was investigated in Helianthus annuus L. (sunflower). Kleaf was measured with an high pressure flow meter during the light and dark period from plants growing at a photoperiod of 12 h. Kleaf was 4.0 e−4 kg s−1 m−2 MPa−1 during the light period (LL) and 30–40% less during the dark period (DL). When photoperiod was inverted and leaves were measured for Kleaf at their subjective light or dark periods, Kleaf adjusted to the new conditions requiring 48 h for increasing from dark to light values and 4 d for the opposite transition. Plants put in continuous dark showed Kleaf oscillating from light to dark values in phase with their subjective photoperiod indicating that Kleaf changes were induced by the circadian clock. Several cuts through the minor veins reduced leaf hydraulic resistance (Rleaf) of both LL and DL to the same value (1.0 e + 3 MPa m2 s kg−1) that equalled the vascular resistance (Rv). The contribution of the non-vascular leaf resistance (Rnv) to Rleaf was of 71.9% in DL and of 58.4% in LL. The dominant Rnv was shown to be reversibly modulated by mercurials, suggesting that aquaporins play a role in diurnal changes of Kleaf. 2005 Blackwell Publishing Journal Backfiles 1879-2005 |2005|||||||||| aquaporins SALLEO, SEBASTIANO verfasserin aut ANDRI, SERGIO verfasserin aut In Plant, cell & environment Oxford [u.a.] : Wiley-Blackwell, 1978 28(2005), 6, Seite 0 Online-Ressource (DE-627)NLEJ243926944 (DE-600)2020843-1 1365-3040 nnns volume:28 year:2005 number:6 pages:0 http://dx.doi.org/10.1111/j.1365-3040.2005.01320.x text/html Verlag Deutschlandweit zugänglich Volltext GBV_USEFLAG_U ZDB-1-DJB GBV_NL_ARTICLE AR 28 2005 6 0 |
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10.1111/j.1365-3040.2005.01320.x doi (DE-627)NLEJ243837127 DE-627 ger DE-627 rakwb NARDINI, ANDREA verfasserin aut Circadian regulation of leaf hydraulic conductance in sunflower (Helianthus annuus L. cv Margot) Oxford, UK Blackwell Science Ltd 2005 Online-Ressource nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier The circadian regulation of leaf hydraulic conductance (Kleaf) was investigated in Helianthus annuus L. (sunflower). Kleaf was measured with an high pressure flow meter during the light and dark period from plants growing at a photoperiod of 12 h. Kleaf was 4.0 e−4 kg s−1 m−2 MPa−1 during the light period (LL) and 30–40% less during the dark period (DL). When photoperiod was inverted and leaves were measured for Kleaf at their subjective light or dark periods, Kleaf adjusted to the new conditions requiring 48 h for increasing from dark to light values and 4 d for the opposite transition. Plants put in continuous dark showed Kleaf oscillating from light to dark values in phase with their subjective photoperiod indicating that Kleaf changes were induced by the circadian clock. Several cuts through the minor veins reduced leaf hydraulic resistance (Rleaf) of both LL and DL to the same value (1.0 e + 3 MPa m2 s kg−1) that equalled the vascular resistance (Rv). The contribution of the non-vascular leaf resistance (Rnv) to Rleaf was of 71.9% in DL and of 58.4% in LL. The dominant Rnv was shown to be reversibly modulated by mercurials, suggesting that aquaporins play a role in diurnal changes of Kleaf. 2005 Blackwell Publishing Journal Backfiles 1879-2005 |2005|||||||||| aquaporins SALLEO, SEBASTIANO verfasserin aut ANDRI, SERGIO verfasserin aut In Plant, cell & environment Oxford [u.a.] : Wiley-Blackwell, 1978 28(2005), 6, Seite 0 Online-Ressource (DE-627)NLEJ243926944 (DE-600)2020843-1 1365-3040 nnns volume:28 year:2005 number:6 pages:0 http://dx.doi.org/10.1111/j.1365-3040.2005.01320.x text/html Verlag Deutschlandweit zugänglich Volltext GBV_USEFLAG_U ZDB-1-DJB GBV_NL_ARTICLE AR 28 2005 6 0 |
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Circadian regulation of leaf hydraulic conductance in sunflower (Helianthus annuus L. cv Margot) |
abstract |
The circadian regulation of leaf hydraulic conductance (Kleaf) was investigated in Helianthus annuus L. (sunflower). Kleaf was measured with an high pressure flow meter during the light and dark period from plants growing at a photoperiod of 12 h. Kleaf was 4.0 e−4 kg s−1 m−2 MPa−1 during the light period (LL) and 30–40% less during the dark period (DL). When photoperiod was inverted and leaves were measured for Kleaf at their subjective light or dark periods, Kleaf adjusted to the new conditions requiring 48 h for increasing from dark to light values and 4 d for the opposite transition. Plants put in continuous dark showed Kleaf oscillating from light to dark values in phase with their subjective photoperiod indicating that Kleaf changes were induced by the circadian clock. Several cuts through the minor veins reduced leaf hydraulic resistance (Rleaf) of both LL and DL to the same value (1.0 e + 3 MPa m2 s kg−1) that equalled the vascular resistance (Rv). The contribution of the non-vascular leaf resistance (Rnv) to Rleaf was of 71.9% in DL and of 58.4% in LL. The dominant Rnv was shown to be reversibly modulated by mercurials, suggesting that aquaporins play a role in diurnal changes of Kleaf. |
abstractGer |
The circadian regulation of leaf hydraulic conductance (Kleaf) was investigated in Helianthus annuus L. (sunflower). Kleaf was measured with an high pressure flow meter during the light and dark period from plants growing at a photoperiod of 12 h. Kleaf was 4.0 e−4 kg s−1 m−2 MPa−1 during the light period (LL) and 30–40% less during the dark period (DL). When photoperiod was inverted and leaves were measured for Kleaf at their subjective light or dark periods, Kleaf adjusted to the new conditions requiring 48 h for increasing from dark to light values and 4 d for the opposite transition. Plants put in continuous dark showed Kleaf oscillating from light to dark values in phase with their subjective photoperiod indicating that Kleaf changes were induced by the circadian clock. Several cuts through the minor veins reduced leaf hydraulic resistance (Rleaf) of both LL and DL to the same value (1.0 e + 3 MPa m2 s kg−1) that equalled the vascular resistance (Rv). The contribution of the non-vascular leaf resistance (Rnv) to Rleaf was of 71.9% in DL and of 58.4% in LL. The dominant Rnv was shown to be reversibly modulated by mercurials, suggesting that aquaporins play a role in diurnal changes of Kleaf. |
abstract_unstemmed |
The circadian regulation of leaf hydraulic conductance (Kleaf) was investigated in Helianthus annuus L. (sunflower). Kleaf was measured with an high pressure flow meter during the light and dark period from plants growing at a photoperiod of 12 h. Kleaf was 4.0 e−4 kg s−1 m−2 MPa−1 during the light period (LL) and 30–40% less during the dark period (DL). When photoperiod was inverted and leaves were measured for Kleaf at their subjective light or dark periods, Kleaf adjusted to the new conditions requiring 48 h for increasing from dark to light values and 4 d for the opposite transition. Plants put in continuous dark showed Kleaf oscillating from light to dark values in phase with their subjective photoperiod indicating that Kleaf changes were induced by the circadian clock. Several cuts through the minor veins reduced leaf hydraulic resistance (Rleaf) of both LL and DL to the same value (1.0 e + 3 MPa m2 s kg−1) that equalled the vascular resistance (Rv). The contribution of the non-vascular leaf resistance (Rnv) to Rleaf was of 71.9% in DL and of 58.4% in LL. The dominant Rnv was shown to be reversibly modulated by mercurials, suggesting that aquaporins play a role in diurnal changes of Kleaf. |
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title_short |
Circadian regulation of leaf hydraulic conductance in sunflower (Helianthus annuus L. cv Margot) |
url |
http://dx.doi.org/10.1111/j.1365-3040.2005.01320.x |
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SALLEO, SEBASTIANO ANDRI, SERGIO |
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doi_str |
10.1111/j.1365-3040.2005.01320.x |
up_date |
2024-07-06T06:40:52.854Z |
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