Sub-high Temperature and High Light Intensity Induced Irreversible Inhibition on Photosynthesis System of Tomato Plant (Solanum lycopersicum L.)

Lu, Tao; Meng, Zhaojuan; Zhang, Guoxian; Qi, Mingfang; Sun, Zenghui; Liu, Yufeng; Li, Tianlai

doi:10.3389/fpls.2017.00365

Cited by 108 publications

(77 citation statements)

References 54 publications

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“…With the severity of stress, photosynthetic ability, RuBisCO activity, quantum yield and 435 electron transport disrupted in tomato [137]. When plants face insufficient K supply leaf chlorosis 436 increased at high light [6].…”

Section: Hight Light 432mentioning

confidence: 99%

Potassium: A Vital Regulator of Plant Responses and Tolerance to Abiotic Stresses

Hasanuzzaman¹,

Bhuyan²,

Hossain³

et al. 2018

Preprint

154

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Among the plant nutrients potassium (K) is one of the vital elements required for plant growth and physiology. Potassium is not only a constituent of plant structure but also plays regulatory function in several biochemical processes related to protein synthesis, carbohydrate metabolism, enzyme activation. There are several physiological processes like stomatal regulation and photosynthesis are dependent on K. In the recent decades K was found to provide abiotic stress tolerance. Under salt stress, K helps in maintaining ion homeostasis and regulation of osmotic balance. Under drought stress condition K regulates the stomatal opening and makes the plants adaptive to water deficit. Many reports provided the notion that K enhances the antioxidant defense in plants and therefore, protects the plants from oxidative stress under various environmental adversities. Also, it provides some cellular signaling alone or in association with other signaling molecules and phytohormones. Although a considerable progress in understanding K-induced abiotic stress tolerance in plants has been achieved the exact molecular mechanisms of such protections are still under research. In this review, we summarized the recent literature on the biological functions of K, its uptake, and translocation and its role in plant abiotic stress tolerance.

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Section: Hight Light 432mentioning

confidence: 99%

Potassium: A Vital Regulator of Plant Responses and Tolerance to Abiotic Stresses

Hasanuzzaman¹,

Bhuyan²,

Hossain³

et al. 2018

Preprint

154

View full text Add to dashboard Cite

show abstract

“…However, these combined stresses can occur in tropical regions even without heat waves, especially in the summer. The isolated effects of high temperatures include altering the plants photosynthetic capacity, particularly by affecting membrane permeability, reducing the content of chloroplastidic pigments, and disrupting electron transport (Ashraf and Harris, 2013;Lu et al, 2017;Mishra et al, 2017). This disruption induces the formation of reactive oxygen species (ROS), which may promote photo-inhibition, as well as inactivation of Calvin cycle proteins and enzymes (Mathur et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

Physiological tolerance to drought under high temperature in soybean cultivars

et al. 2019

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Soybean is one of the most economically important crops and has experienced adverse physiological and biochemical effects when subjected to drought stress and heat, resulting in lost productivity. Thus, the objective of this work was to evaluate the physiological, metabolic and growth responses of well-watered and drought-treated soybean cultivars under high temperature. The experimental design was set up in randomized blocks, in a factorial scheme with three soybean cultivars (7739 M, Anta 82 and Desafio) and two water levels (100% and 40% field capacity). The experiment was conducted in a controlled growth chamber with a gradual rise in temperature at 41°C for 5 hours daily. Morpho-physiological and metabolic analyses were performed 12 days after the treatments imposition. The parameters of water and osmotic potentials, relative water content, photosynthetic rate, stomatal conductance, transpiratory rate, electron flux for the carboxylation and oxygenation of RuBisCO were decreased for all cultivars under water deficit and high temperature. The results showed that the photorespiration and the rate of electrolyte leakage were increased as well. These results showed that these physiological behaviors are standard for soybean plants under water deficit, regardless of cultivars. The cultivars 7739 M and Desafio showed lower performance than the cultivar Anta 82 for the parameters of total electron flow and effective quantum yield of PS II. The 7739 M and Anta 82 were the only cultivars to show increased nonphotochemical quenching dissipation and total soluble sugar content, respectively, under stress conditions. Desafio cultivar demonstrated greater physiological and growth traits stability, which could potentially indicate double tolerance to these stresses.

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“…Chl fluorescence measurement can be used to assess changes of PSII photochemistry, linear electron flux, and CO2 assimilation in vivo (Maxwell andJohnson 2000, Baker 2008). Lu et al (2017) demonstrated that the photosynthetic capacity of tomato plants declines gradually and then sharply with leaf senescence under heat stress. During this process, the cell structure, metabolism, and gene expression of leaf cells undergo reversible or irreversible changes.…”

Section: Introductionmentioning

confidence: 99%

Enhancing the thermotolerance of tomato seedlings by heat shock treatment

Yang¹,

Xu²,

Wang³

et al. 2019

Photosynt.

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The heat tolerance of tomato seedlings was significantly enhanced after heat shock treatment at 40°C for 4 h. Compared with the control, the heat-shocked tomato seedlings, on one hand, had a higher net photosynthetic rate (PN), stomatal conductance, intercellular CO2 concentration, water-use efficiency, maximal quantum yield of PSII photochemistry (Fv/Fm), electron transport rate, actual photochemical efficiency of PSII, and activity of antioxidant enzymes, on the other hand, had lower nonphotochemical quenching, relative conductivity, malondialdehyde content (MDA), and accumulation of reactive oxygen species (ROS). In addition, heat shock induced production of heat shock proteins (HSPs) in tomato seedling leaves. HSP70 was significantly negatively correlated with PN, Fv/Fm, catalase, superoxide dismutase, and peroxidase and was significantly positively correlated with MDA and ROS. Overall, short-term heat shock treatments, inducing the production of HSPs, helped improve the thermal tolerance of tomato seedlings.

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Sub-high Temperature and High Light Intensity Induced Irreversible Inhibition on Photosynthesis System of Tomato Plant (Solanum lycopersicum L.)

Cited by 108 publications

References 54 publications

Potassium: A Vital Regulator of Plant Responses and Tolerance to Abiotic Stresses

Potassium: A Vital Regulator of Plant Responses and Tolerance to Abiotic Stresses

Physiological tolerance to drought under high temperature in soybean cultivars

Enhancing the thermotolerance of tomato seedlings by heat shock treatment

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