Biochemical and Molecular Mechanisms of Abiotic Stress Tolerance

Khan, M. Iqbal R.; Jannat, Arooma; Munir, Faiza; Fatima, Nosheen; Amir, Rabia

doi:10.1007/978-981-15-2172-0_9

Cited by 5 publications

(8 citation statements)

References 268 publications

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“…T max during the 3‐week period in 2015 was significantly higher when the plants were exposed to drought stress, particularly in the first week of drought, combined with a lower percentage of soil moisture than in the following year (Figure 1). Numerous studies have shown that different environmental factors affecting the plant cause its unique response to abiotic stresses (Balfagón et al., 2020; Khan et al., 2020; Tricker et al., 2018; Zandalinas et al., 2018) and influence the results, as shown in our research. Regarding differences in rye wax composition between the years, Sheperd and Griffiths (2006) reported that high temperature affected the composition of waxes; however, it was also dependent on irradiation and plant species.…”

Section: Discussionsupporting

confidence: 70%

Correlation between leaf epicuticular wax composition and structure, physio‐biochemical traits and drought resistance in glaucous and non‐glaucous near‐isogenic lines of rye

et al. 2021

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SUMMARY The objective of this research was to investigate the differences between glaucous and non‐glaucous near‐isogenic lines (NILs) of winter rye (Secale cereale L.) in terms of epicuticular wax layer properties (weight, composition, and crystal morphology), selected physiological and biochemical responses, yield components, above‐ground biomass, and plant height under soil drought stress. An important aspect of this analysis was to examine the correlation between the above characteristics. Two different NIL pairs were tested, each consisting of a typical glaucous line and a non‐glaucous line with a recessive mutation. The drought experiment was conducted twice (2015–2016). Our study showed that wax accumulation during drought was not correlated with higher leaf hydration and glaucousness. Environmental factors had a large impact on the response of the lines to drought in individual years, both in terms of physiological and biochemical reactions, and the composition of epicuticular leaf wax. The analysed pairs displayed significantly different responses to drought. Demonstration of the correlation between the components of rye leaf wax and the physiological and biochemical parameters of rye NILs is a significant achievement of this work. Interestingly, the study showed a correlation between the wax components and the content of photosynthetic pigments and tocopherols, whose biosynthesis, similarly to the biosynthesis of wax precursors, is mainly located in chloroplasts. This suggests a relationship between wax biosynthesis and plant response to various environmental conditions and drought stress.

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Section: Discussionsupporting

confidence: 70%

Correlation between leaf epicuticular wax composition and structure, physio‐biochemical traits and drought resistance in glaucous and non‐glaucous near‐isogenic lines of rye

et al. 2021

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“…During abiotic stress, the following sources of ROS occur: the signaling pathway in which ROS are produced for signaling by participating in the abiotic stress response signal transduction network and the metabolic pathway in which ROS are produced as a result of an imbalance in metabolic activity. It has been found that an increase in the level of ROS negatively affects the cell by oxidative damage to membranes (lipid peroxidation), RNA, DNA and proteins, which in turn leads to oxidative destruction of the cell (oxidative burst), as well as can cause cellular toxicity due to the accumulation of ROS metabolite products in the cell [27,28].…”

Section: Introductionmentioning

confidence: 99%

Responses of Soybean to Selected Abiotic Stresses—Photoperiod, Temperature and Water

2023

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The sharp increase in soybean (Glycine max (L.) Merrill) acreage in the late 20th century and early 21st century is due to the demand for edible oil and feed protein. However, a limiting factor in the extent of soybean cultivation is its high heat requirements and response to photoperiod. Most varieties are short-day plants and are generally the best-yielding genotypes. At higher latitudes (longer day length), there is a delay in the occurrence of subsequent developmental stages and problems with plant maturation before the onset of autumn frost. Global warming allows the cultivation range of warm-season species (including soya) to be shifted; however, periodic droughts and very high temperatures limit crop production. Adverse weather events result in a reduction in soybean seed yield of around 30%. Environmental stresses related to day length, high and low temperatures and water shortage or excess have the greatest impact on soybean yields, as we have no influence on them and can only, to a very limited extent, offset their negative effects. This paper reviews the recent world literature on how soybean responds to these stress factors. The results of our own research were also used.

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“…As sessile organisms, they have developed sophisticated and efficient mechanisms for perceiving, avoiding, escaping and even achieving tolerance to limiting environmental conditions, typically categorized on i. biotic stress, arising from virus, fungus, bacteria and other pathogenic and/or predatory agents who parasite plants; ii. abiotic stress, regarding those adverse conditions directly associated with the fluctuation of environmental parameters such as water availability, temperature and soil composition [1,2].…”

Section: Introductionmentioning

confidence: 99%

“…Most of the products generated by the transcription of stress-responsive genes directly participate in cell homeostasis restoration, such as detoxification enzymes, besides other secondary metabolite pathways. Otherwise, earlyresponsive TFs regulate the expression of late-responsive ones, which regulate other genes belonging to stress responsive pathways [2].…”

Section: Introductionmentioning

confidence: 99%

Abiotic Stresses in Plants and Their Markers: A Practice View of Plant Stress Responses and Programmed Cell Death Mechanisms

Melo¹,

Carpinetti

Fraga

et al. 2022

Plants

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Understanding how plants cope with stress and the intricate mechanisms thereby used to adapt and survive environmental imbalances comprise one of the most powerful tools for modern agriculture. Interdisciplinary studies suggest that knowledge in how plants perceive, transduce and respond to abiotic stresses are a meaningful way to design engineered crops since the manipulation of basic characteristics leads to physiological remodeling for plant adaption to different environments. Herein, we discussed the main pathways involved in stress-sensing, signal transduction and plant adaption, highlighting biochemical, physiological and genetic events involved in abiotic stress responses. Finally, we have proposed a list of practice markers for studying plant responses to multiple stresses, highlighting how plant molecular biology, phenotyping and genetic engineering interconnect for creating superior crops.

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Biochemical and Molecular Mechanisms of Abiotic Stress Tolerance

Cited by 5 publications

References 268 publications

Correlation between leaf epicuticular wax composition and structure, physio‐biochemical traits and drought resistance in glaucous and non‐glaucous near‐isogenic lines of rye

Correlation between leaf epicuticular wax composition and structure, physio‐biochemical traits and drought resistance in glaucous and non‐glaucous near‐isogenic lines of rye

Responses of Soybean to Selected Abiotic Stresses—Photoperiod, Temperature and Water

Abiotic Stresses in Plants and Their Markers: A Practice View of Plant Stress Responses and Programmed Cell Death Mechanisms

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