Salinity induced physiological and biochemical changes in plants: An omic approach towards salt stress tolerance

Plant Physiology and Biochemistry, Год журнала: 2020, Номер 156, С. 64 - 77

Опубликована: Авг. 29, 2020

Язык: Английский

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Melatonin: A New Plant Hormone and/or a Plant Master Regulator?

Trends in Plant Science, Год журнала: 2018, Номер 24(1), С. 38 - 48

Опубликована: Ноя. 13, 2018

Язык: Английский

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Climate change regulated abiotic stress mechanisms in plants: a comprehensive review

Plant Cell Reports, Год журнала: 2021, Номер 41(1), С. 1 - 31

Опубликована: Авг. 5, 2021

Язык: Английский

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Melatonin-mediated nitric oxide improves tolerance to cadmium toxicity by reducing oxidative stress in wheat plants

Chemosphere, Год журнала: 2019, Номер 225, С. 627 - 638

Опубликована: Март 6, 2019

Язык: Английский

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Tolerance to Stress Combination in Tomato Plants: New Insights in the Protective Role of Melatonin

Molecules, Год журнала: 2018, Номер 23(3), С. 535 - 535

Опубликована: Фев. 28, 2018

Abiotic stresses such as drought, heat or salinity are major causes of yield loss worldwide. Recent studies have revealed that the acclimation plants to a combination different environmental is unique and therefore cannot be directly deduced from studying response each applied individually. The efficient detoxification reactive oxygen species (ROS) thought play key role in enhancing tolerance abiotic stresses. Here, we report on melatonin protection photosynthetic apparatus through increase ROS tomato grown under heat, two most common known act jointly. Plants treated with exogenous showed modulation expression some antioxidant-related genes their related enzymes. More specifically, ascorbate peroxidase, glutathione reductase, peroxidase phospholipid hydroperoxide (APX, GR, GPX Ph-GPX, resepctively) an antagonistic regulation compared did not receive melatonin. This translated into better antioxidant capacity lesser accumulation stress combination. performance photosynthesis parameters photosystems was also increased heat. In accordance these findings, were found grow non-treated ones. Our study highlights important plays stresses, how this compound can specifically regulate oxidative stress-related enzymes plant tolerance.

Язык: Английский

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Mechanisms Regulating the Dynamics of Photosynthesis Under Abiotic Stresses

Frontiers in Plant Science, Год журнала: 2021, Номер 11

Опубликована: Янв. 28, 2021

Photosynthesis sustains plant life on earth and is indispensable for growth development. Factors such as unfavorable environmental conditions, stress regulatory networks, biochemical processes limits the photosynthetic efficiency of plants thereby threaten food security worldwide. Although numerous physiological approaches have been used to assess performance key components their responses, though, these are not extensive enough do favor strategic improvement photosynthesis under abiotic stresses. The decline in capacity due stresses directly associated with reduction yield. Therefore, a detailed information responses better understanding machinery could help developing new crop higher yield even stressed environments. Interestingly, cracking signaling metabolic pathways, identification some elements, characterization potential genes, phytohormone factors advanced our knowledge related photosynthesis. However, dynamic modulation dramatically fluctuating natural environments remains limited. Here, we provide overview research conducted date, highlight (heat, salinity, drought, high light, heavy metal) that limit machinery. Further, reviewed role transcription factor genes various enzymes involved process Finally, discussed recent progress field biodegradable compounds, chitosan humic acid, effect melatonin (bio-stimulant) activity. Based gathered researched data set, logical concept regulation along strategies will expand surely accelerate development tolerance mechanisms, wider adaptability, survival rate, species.

Язык: Английский

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Exogenous melatonin promotes biomass accumulation and photosynthesis of kiwifruit seedlings under drought stress

Scientia Horticulturae, Год журнала: 2018, Номер 246, С. 34 - 43

Опубликована: Окт. 30, 2018

Язык: Английский

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Melatonin pretreatment improves vanadium stress tolerance of watermelon seedlings by reducing vanadium concentration in the leaves and regulating melatonin biosynthesis and antioxidant-related gene expression

Journal of Plant Physiology, Год журнала: 2017, Номер 220, С. 115 - 127

Опубликована: Ноя. 21, 2017

Язык: Английский

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Integrative roles of nitric oxide and hydrogen sulfide in melatonin‐induced tolerance of pepper (Capsicum annuum L.) plants to iron deficiency and salt stress alone or in combination

Physiologia Plantarum, Год журнала: 2019, Номер 168(2), С. 256 - 277

Опубликована: Апрель 13, 2019

There seems to be no report in the literature on effect of melatonin (MT) relieving detrimental effects combined application salt stress (SS) and iron deficiency (ID). Therefore, MT accumulation/synthesis endogenous nitric oxide (NO) hydrogen sulphide (H2 S) how far these molecules are involved MT-improved tolerance ID SS pepper (Capsicum annuum L) were tested. Hence, two individual trials set up. The treatments first experiment comprised: Control, (0.1 mM FeSO4 ), (100 NaCl) + SS. stresses more prominent than those by either single stress, with respect growth, oxidative antioxidant defense attributes. Single or both combination improved H2 S NO, foliar-applied µM) led a further increase NO levels. In second experiment, 0.1 scavenger 2-(4-carboxyphenyl)-4,4,5,5-tetramethylimidazoline-1-oxyl-3-oxide potassium (cPTIO) that S, hypotuarine (HT) applied along get evidence whether MT-induced cPTIO HT under showed was reversed scavenger, cPTIO, alone but inhibited scavengers. These findings suggested induced may downstream signal crosstalk between S.

Язык: Английский

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Melatonin alleviates heat-induced damage of tomato seedlings by balancing redox homeostasis and modulating polyamine and nitric oxide biosynthesis

BMC Plant Biology, Год журнала: 2019, Номер 19(1)

Опубликована: Окт. 7, 2019

Melatonin is a pleiotropic signaling molecule that plays multifarious roles in plants stress tolerance. The polyamine (PAs) metabolic pathway has been suggested to eliminate the effects of environmental stresses. However, underlying mechanism how melatonin and PAs function together under heat largely remains unknown. In this study, we investigated potential role regulating nitric oxide (NO) biosynthesis, counterbalancing oxidative damage induced by tomato seedlings.Heat enhanced overproduction reactive oxygen species (ROS) damaged inherent defense system, thus reduced plant growth. pretreatment with 100 μM (7 days) followed exposure (24 h) effectively controlling overaccumulation superoxide (O2•-) hydrogen peroxide (H2O2), lowering lipid peroxidation content (as inferred based on malondialdehyde content) less membrane injury index (MII). This was associated increased enzymatic non-enzymatic antioxidants activities their related gene expression modulating ascorbate-glutathione cycle. presence respiratory burst oxidase (RBOH), shock transcription factors A2 (HsfA2), protein 90 (HSP90), delta 1-pyrroline-5-carboxylate synthetase (P5CS) expression, which helped detoxify excess ROS via peroxide-mediated pathway. addition, boosted endogenous levels putrescine, spermidine spermine, contents, indicating higher expression. Moreover, melatonin-pretreated seedlings had further upregulated transcript abundance, coincided suppression catabolic-related genes Under stress, exogenous NO along nitrate reductase- synthase-related activities, were also elevated.Melatonin positively tolerance improving antioxidant mechanism, inducing cycle, reprogramming biosynthesis pathways. These attributes facilitated scavenging stability cellular membrane, mitigated heat-induced stress.

Язык: Английский

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