Rapid plant rehydration initiates permanent and adverse changes in the photosynthetic apparatus of triticale

Hura, Tomasz; Hura, Katarzyna; Ostrowska, Agnieszka; Dziurka, Kinga

doi:10.1007/s11104-015-2607-1

Cited by 27 publications

(16 citation statements)

References 90 publications

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“…Increases in ROS levels under water deficit conditions are associated with low efficiency in the excitation energy dissipation, through the photosynthetic apparatus, which it is considered an important source of overproduction of ROS under abiotic stress (Hura et al, 2015).…”

Section: Discussionmentioning

confidence: 99%

Short-Time of Rehydration is not Effective to Re-Establish Chlorophyll Fluorescence and Gas Exchange in Two Cowpea Cultivars Submitted to Water Deficit

Barros

Barbosa

Lima

et al. 2017

Not Bot Horti Agrobo

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Low water supply frequently interferes on chlorophyll fluorescence and gas exchange. This study aimed to answer if a short-time of rehydration is efficient to re-establish chlorophyll fluorescence and gas exchange in cowpea plants. The experiment used four treatments (sensitive / water deficit, sensitive / control, tolerant / water deficit and tolerant / control). The sensitive and tolerant cultivars after water restriction had significant changes in gas exchange. On the third day, the stress caused lower for PN and gs in sensitive cultivar of 67% and 45%, respectively. After rehydration these parameters were not recovered significantly to two cultivars. In relation to chlorophyll fluorescence, water stress caused significant changes in all parameters evaluated of cultivars, being observed effects more intense on sensitive cultivar in the parameters Fv/Fm (38%) and Fo (69%). Rehydration did not promote recovery of the values of Fv/Fm and Fo to sensitive cultivar. Therefore, our study revealed that a short-time of rehydration is not effective to re-establish chlorophyll fluorescence and gas exchange in cowpea plants submitted to water deficit.

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Section: Discussionmentioning

confidence: 99%

Short-Time of Rehydration is not Effective to Re-Establish Chlorophyll Fluorescence and Gas Exchange in Two Cowpea Cultivars Submitted to Water Deficit

Barros

Barbosa

Lima

et al. 2017

Not Bot Horti Agrobo

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“…The short vegetation period of spring cereals is often insufficient for full plant recovery after drought. A common reason for incomplete recovery is permanent damage to the photosynthetic apparatus caused by leaf dehydration (Hura et al 2015).…”

Section: Cereal Research Communications 47 2019mentioning

confidence: 99%

Physiological responses of spring wheat to 5-aminolevulinic acid under water stress applied at seedling stage

Ostrowska

Biesaga‐Kościelniak

Grzesiak

et al. 2019

Cereal Research Communications

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5-Aminolevulinic acid relieves the effects of environmental stresses in plants. Therefore, the aim of our study was to evaluate the effects of 5-aminolevulinic acid (5-ALA) on the activity of the photosynthetic apparatus in spring wheat. Other analyzed parameters involved plant height, relative turgidity, membrane status, and chlorophyll level. The plant material consisted of three genotypes of spring wheat (J × Z, R × K, K × M), subjected to mild and severe drought in the early phase of vegetative development.5-ALA showed a positive effect on the activity of the photosynthetic apparatus under water stress. The relieving action of 5-ALA on PSII was the most evident in J × Z genotype during severe soil drought. 5-ALA positively influenced the maximum photochemical efficiency of PSII (F v /F m ), the overall performance index of PSII photochemistry (PI) and the effective quantum field of PSII (φ Eo ). In the same genotype, the investigated acid stimulated light energy absorption (ABS/CS m ), and enhanced the amount of excitation energy trapped in PSII reaction centers (TR o /CS m ) and the amount of energy used for electron transport (ET o /CS m ).Moreover, 5-aminolevulinic acid showed its potential to overcome the adverse effects of water deficit on Triticum aestivum L. by increasing plant growth, relative turgidity, and chlorophyll content and reducing the degree of damage to cell membranes at the early phase of vegetative development.Abbreviations: 5-ALA -5-aminolevulinic acid; ABS/CS m -light energy absorption; Chl -chlorophyll; CS m -leaf cross-section; DI o /CS m -energy amount dissipated from PSII; EL -electrolyte leakage; ET o /CS m -amount of energy used for electron transport; F v /F mquantum yield of PSII; MWC -maximum water holding capacity; PI -overall performance index of PSII photochemistry; RC/CS m -number of active reaction centers; RT -relative turgidity; TR o /CS m -amount of excitation energy trapped in PSII reaction centers; φ Eo -quantum yield of electron transport

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“…This outcome could explain such a substantial drop in the carbohydrate content in the leaves of PA15 plants under thermal stress. Hura et al (2015) found a correlation between ψR0 and φR0 and hydrogen peroxide production as an effect of drought stress in triticale leaves.…”

Section: CVmentioning

confidence: 86%

Photosynthetic activity of common buckwheat (Fagopyrum esculentum Moench) exposed to thermal stress

Hornyák¹,

Płażek²,

Kopeć³

et al. 2020

Photosynt.

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The aim of the work was to investigate thermal stress effect on photosynthetic activity of common buckwheat. Seedlings of common buckwheat were exposed to 20°C (control) and 30°C (thermal stress). The research involved the Polish cultivar 'Panda' and strain PA15 and determined kinetics of chlorophyll a fluorescence (Chlf), leaf gas exchange, soluble carbohydrate (SC) content in donor leaves, electrolyte leakage as a parameter of cell membrane permeability, and amount of abscisic acid and jasmonates. In 'Panda' and PA15 plants grown at 30°C, most of Chlf parameters improved. 'Panda' plants grown at 30°C demonstrated a higher increase in net photosynthetic rate, lower transpiration rate, and smaller SC reduction than those of PA15 strain. At this temperature, 'Panda' leaves accumulated greater amounts of jasmonates than that of the control. We concluded that studied genotypes demonstrated disparate responses to thermal stress, but for both, 30°C is more favourable temperature for vegetative growth than 20°C.

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Rapid plant rehydration initiates permanent and adverse changes in the photosynthetic apparatus of triticale

Cited by 27 publications

References 90 publications

Short-Time of Rehydration is not Effective to Re-Establish Chlorophyll Fluorescence and Gas Exchange in Two Cowpea Cultivars Submitted to Water Deficit

Short-Time of Rehydration is not Effective to Re-Establish Chlorophyll Fluorescence and Gas Exchange in Two Cowpea Cultivars Submitted to Water Deficit

Physiological responses of spring wheat to 5-aminolevulinic acid under water stress applied at seedling stage

Photosynthetic activity of common buckwheat (Fagopyrum esculentum Moench) exposed to thermal stress

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