Regulatory networks in plant responses to drought and cold stress

PLANT PHYSIOLOGY, Journal Year: 2024, Volume and Issue: 195(1), P. 170 - 189

Published: March 21, 2024

Abstract Drought and cold represent distinct types of abiotic stress, each initiating unique primary signaling pathways in response to dehydration temperature changes, respectively. However, a convergence at the gene regulatory level is observed where common set stress-responsive genes activated mitigate impacts both stresses. In this review, we explore these intricate networks, illustrating how plants coordinate stress signals into collective transcriptional strategy. We delve molecular mechanisms perception, signaling, activation pathways, with focus on insights gained from model species. By elucidating shared aspects plant responses drought cold, provide insight adaptive strategies plants, paving way for engineering stress-resilient crop varieties that can withstand changing climate.

Language: Английский

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Advances from chlorophyll biosynthesis to photosynthetic adaptation, evolution and signaling

Plant Stress, Journal Year: 2024, Volume and Issue: 12, P. 100470 - 100470

Published: April 28, 2024

Chlorophyll (Chl)-mediated oxygenic photosynthesis supports life on earth. From a view of evolution, 'survival the fittest' facilitates photosynthetic organisms evolved from cyanobacteria to higher plants by ever more sophisticated photosystems including antennae, Chls, and carotenoids. Increasing advances highlight (1) H subunit magnesium chelatase (CHLH)-mediated Chl biosynthesis at branch point that also channels heme common tetrapyrrole pathway, associated various gun (genomes uncoupled) anterograde signals; (2) multiple functions carotenoids generated mevalonic acid (MVA) methylerythritol phosphate (MEP) pathways, linked several hormonal (3) size composition modularly-assembled pigment-protein supercomplexes vary with green lineages adaptive growth niches genetic structural levels, showing Chls fitness. Under favorable environments, electron transfer chain (PETC) is responsible for sugar biosynthesis, fundamental plant auxin cytokinin. While under stressful impeded PETC triggers ROS, consequently triggering both phytohormone signaling (ABA, SA, JA, Eth) retrograde (PAP, MEcPP, GUNs). These regulators weave crosstalk network between nucleus-to-plastid plastid-to-nucleus signaling, finally fine-tuning development adaptation. In this review, we outline photosystematic evolution chloroplast-derived signals, paving way understanding survival fitness optimizing utilization.

Language: Английский

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Understanding the impacts of drought on peanuts (Arachis hypogaea L.): exploring physio-genetic mechanisms to develop drought-resilient peanut cultivars

Frontiers in Genetics, Journal Year: 2025, Volume and Issue: 15

Published: Jan. 8, 2025

Peanut is a vital source of protein, particularly in the tropical regions Asian and African countries. About three-quarters peanut production occurs worldwide arid semi-arid regions, making drought an important concern production. In US about two-thirds peanuts are grown non-irrigated lands, where accounts for 50 million USD loss each year. The looming threat climate change exacerbates this situation by increasing erratic rainfall. Drought not only reduces yield but also degrades product quality. Peanuts under stress exhibit higher levels pre-harvest aflatoxin contamination, toxic fungal metabolite detrimental to both humans animals. One way sustain drought-prone address contamination developing drought-tolerant cultivars, process that can be accelerated understanding underlying physiological genetic mechanisms tolerance stress. Different attributes have been identified cultivars help them cope with advent precise studies, artificial intelligence, high-throughput phenotyping, bioinformatics, data science significantly improved studies peanuts. Yet, breeding often challenge as it complex trait affected environmental conditions. Besides technological advancements, success cultivar development relies on identification suitable germplasm conservation variation.

Language: Английский

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Exploring physiological and molecular dynamics of drought stress responses in plants: challenges and future directions

Frontiers in Plant Science, Journal Year: 2025, Volume and Issue: 16

Published: March 24, 2025

Plants face multifactorial environmental stressors mainly due to global warming and climate change which affect their growth, metabolism, productivity. Among them, is drought stress alters intracellular water relations, photosynthesis, ion homeostasis elevates reactive oxygen species eventually reduce growth yields. In addition, soil physicochemical properties beneficial microbiota are critical for plant survival. Recent reports have shown that increasing the occurrence intensity of in many regions world, has become a primary concern crop productivity, ecophysiology food security. To develop ideas strategies protecting plants against harmful effects meeting future demand under climatic calamities an in-depth understanding molecular regulatory pathways governing responses imperative. parallel, more research needed understand how changes features soil, particularly microbiomes, as microorganisms can withstand faster than plants, could assist them recover. this review we first discuss effect on microbiomes. How affects microbe interactions other microbe-driven traits was also highlighted. Next, focused sense undergo biochemical reprogramming from root shoot regulate diverse adaptive traits. For instance, role calcium (Ca 2+ ), (ROS) abscisic acid (ABA) modulating different cellular like stomata functioning, osmotic adjustment, We provide update hormones signaling crosstalk allows fine tune during stress. Further, discussed recurrent exposure leads development short-term memory survive stresses. Lastly, application omics biotechnological-based mitigating approaches combat sustainable agriculture. This offers deeper multiple factors related be useful improvement programs.

Language: Английский

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Plant metabolomics

Journal of Experimental Botany, Journal Year: 2024, Volume and Issue: 75(6), P. 1651 - 1653

Published: Feb. 22, 2024

Abstract Plants are a treasure trove of metabolic compounds. The chemical diversity plant cells has developed and been maintained through evolution regulation, plays crucial role in physiology, development, adaption to changing environmental situations. Metabolomics, when combined with genomics proteomics, opened up unprecedented opportunities address the biological importance diversity. It also provided an avenue for engineering produce particular compound interest meet societal economical demands, important effort achieve sustainable development. This Special Issue therefore focuses on current trends metabolomics research, providing examples development analytical technologies, functional study metabolism, applications synthetic biology.

Language: Английский

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Abscisic acid and polyamines coordinately regulate strawberry drought responses

Plant Stress, Journal Year: 2024, Volume and Issue: 11, P. 100387 - 100387

Published: Feb. 6, 2024

Abscisic acid (ABA) and polyamines (PAs) play an important role in plant stress responses; however, their cooperative mechanisms are not fully understood. Here, using the detached-, PEG 6000- pot-drought strawberry leaves, we investigated expression changes of genes key to ABA PA homeostasis by a combination qRT-PCR, western blotting, RNA-sequencing, physiological analyses, pharmacological tests. The results showed that early drought may promote production both putrescine (Put) FaADC1 FaNCED1, then these productions could be further facilitated accumulated Put. Meanwhile, high accumulation only accelerated biosynthesis FaNCED3, but also controlled decrease increase FaSAMDC1 FaPAO5 expression. Based on our RNA-seq data, Put was involved photosynthesis oxidative phosphorylation, while implicated sugar flavonoid metabolism, which were linked auxin (IAA). Altogether, response stress, FaNCED1/3 FaADC1/FaSAMDC1 participated separately accumulation, mostly FaNCED1/FaADC1 induced FaNCED3/FaSAMDC1 ABA. Finally, balance between PAs for control growth adaptation is proposed through IAA, photosynthesis, among act Put-dependent manner.

Language: Английский

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Metabolic responses to multi-stress: an update

Plant Stress, Journal Year: 2025, Volume and Issue: unknown, P. 100729 - 100729

Published: Jan. 1, 2025

Language: Английский

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The protein phosphatases of abscisic acid coreceptors mediate carbon metabolism in Arabidopsis

Theoretical and Experimental Plant Physiology, Journal Year: 2025, Volume and Issue: 37(1)

Published: Feb. 18, 2025

Language: Английский

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Beyond Soil Moisture: The Multidimensional Influences of Soil Properties on Leaf Physiological and Biochemical Attributes of Plant Communities Along a Typical Arid Coast of Hainan, China

Journal of soil science and plant nutrition, Journal Year: 2025, Volume and Issue: unknown

Published: March 5, 2025

Language: Английский

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Integrative physiological and transcriptomic analysis provides insights on the molecular basis of ABA-enhanced drought tolerance in pear (Pyrus betulaefolia)

BMC Plant Biology, Journal Year: 2025, Volume and Issue: 25(1)

Published: April 21, 2025

Drought stress could suppress the carbon assimilation and limit nutrient uptake of pear plants, thus affecting their growth severely impacting quality yield fruit. ABA is a hormone reported to alleviate drought in numerous plants. However, whether how functions responses plants yet explored. Here, address this gap, seedlings (Pyrus betulaefolia) were used subjected PEG-induced conditions with or without additional various doses. The results showed that while caused severe leaf water loss damage, applying at 50 µM 100 dramatically amended phenomenon, as indicated by markedly increased relative content, notably decreased electrolyte leakage malondialdehyde content. Based on RNA sequencing related physiological indices, it was found grossly disrupted chlorophyll synthesis photosynthesis. It induced over-production reactive oxygen species (ROS) broke ROS homeostasis, despite pronounced increases biosynthesis/content signaling, flavonoid synthesis, antioxidant enzyme activities, well sugar metabolism. applications significantly elevated expressions genes photosynthesis, partially boosting SPAD Fv/Fm values. In addition, treatments further prominently accelerate processes ABA, flavonoids, enzymes up-regulating corresponding genes, resulting endogenous accumulation enzymatic activity improvement, thereby expediting scavenging. Of course, metabolism pathway also outstandingly enhanced balance response seedlings. Moreover, through WGCNA analysis, core turquoise module associated ABA-attenuated identified, portion key transcription factors (TFs) some hub characterized, particularly for ERF, WRKY, MYB, bHLH, NAC TFs, CSP, COR, DHN genes. Overall, our study reveals exogenous help efficiently scavenge drought-induced improving photosynthesis capacity, accumulation, catabolism, system, etc. These will provide scientific basis practical direction utilizing mitigate adverse effects starvation from persistent high temperature summer. application ameliorated damage seedlings, working routes are reinforcement photosystem, biosynthesis metabolism, activities relevant regulatory network complex, primarily concerned focus potential target named DHN.

Language: Английский

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