Leaf movements such as leaf rolling affect plant physiological performance by reducing light capture. The relationship between leaf rolling and physiological traits under imposed water stress conditions was analyzed in two population of Cistus incanus. We tested the hypothesis that leaf rolling reflected physiological changes occurring during water stress irrespective of the different acclimation in order to cope with water stress. On the whole, our results confirmed our hypothesis since leaf rolling significantly reflected physiological activity changes. Moreover, leaf rolling might be involved in protecting the PSII complex under water stress during the progressive inhibition of photosynthetic metabolism. Thus, leaf rolling could be part of C. incanus adaptive strategy to cope with water stress by sustaining leaf turgor. As such, leaf rolling may be used as a morphological index to evaluate the progressive inhibition of photosynthesis irrespective of the different acclimation to cope with water stress.

Leaf rolling as indicator of water stress in Cistus incanus from different provenances / Puglielli, G.; Gratani, L.; Varone, L.. - In: PHOTOSYNTHETICA. - ISSN 0300-3604. - 57:1(2019), pp. 202-208. [10.32615/ps.2019.014]

Leaf rolling as indicator of water stress in Cistus incanus from different provenances

Puglielli, G.;Gratani, L.;Varone, L.
2019

Abstract

Leaf movements such as leaf rolling affect plant physiological performance by reducing light capture. The relationship between leaf rolling and physiological traits under imposed water stress conditions was analyzed in two population of Cistus incanus. We tested the hypothesis that leaf rolling reflected physiological changes occurring during water stress irrespective of the different acclimation in order to cope with water stress. On the whole, our results confirmed our hypothesis since leaf rolling significantly reflected physiological activity changes. Moreover, leaf rolling might be involved in protecting the PSII complex under water stress during the progressive inhibition of photosynthetic metabolism. Thus, leaf rolling could be part of C. incanus adaptive strategy to cope with water stress by sustaining leaf turgor. As such, leaf rolling may be used as a morphological index to evaluate the progressive inhibition of photosynthesis irrespective of the different acclimation to cope with water stress.
2019
apparent carboxylation efficiency; electron transport rate; photosynthesis; substomatal CO2 concentration
01 Pubblicazione su rivista::01a Articolo in rivista
Leaf rolling as indicator of water stress in Cistus incanus from different provenances / Puglielli, G.; Gratani, L.; Varone, L.. - In: PHOTOSYNTHETICA. - ISSN 0300-3604. - 57:1(2019), pp. 202-208. [10.32615/ps.2019.014]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/1300776
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