Photosynthetic performance and carbon metabolism in the ear organs of oats under drought stress

Frontiers in Plant Science, Journal Year: 2025, Volume and Issue: 15

Published: Jan. 21, 2025

Sufficiently exploiting the potential of crop photosynthesis is one critical ways for improving cultivation production to face global climate change. In this study, oat plants were potted with three watering treatments. The glumes, lemmas, and flag leaves sampled on days 0, 7, 14 after first floret blossomed under control (denoted as CK-0, CK-7, CK-14), drought stress DS-7, DS-14) rewatering treatments (RW-14). Paraffin cross-section structures observed, absolute water content, photosynthetic enzyme activities, carbohydrate dry matter weight, total C N accumulation determined in lemmas leaves. results showed that stomatal tissues present both inner outer epidermis glumes chloroplasts existed cells ear organs. Compared CK-14, content was significantly decreased leaves, stems, seeds DS-14, while did not affect status peduncles. Drought PEPC activities had higher activity than late stages grain filling. fructose sucrose increased fructose, sucrose, starch lemmas. addition, soluble sugar all stress. Rewatering it no significant effect As growth continued, contents mass gradually increased, which transferred from stems. suggest oats can tolerate a certain degree without affecting ears’ physiological function yield, organs maintain performance, plays major role maintenance seed yield conditions.

Language: Английский

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Mechanistic insights and future perspectives of drought stress management in staple crops

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

Published: March 27, 2025

Due to extended periods of below-normal rainfall and rising temperatures, drought is a significant global issue for agricultural productivity. Hydrological, agricultural, meteorological droughts all pose different problems with regard the availability water important crops, which in turn impacts plant development yield. Depending on crop species stage maturity, stress degrades metabolism physiological processes, resulting decreased growth yield losses that can range from 30% 90%. Acclimatization adaptation are two basic techniques plants use survive drought. Rapid alterations processes chemical composition, including modifications osmotic pressure, root leaf size, antioxidant systems, part acclimatization. Xerophytism succulence characteristics drought-resistant have evolved assist preserve cellular integrity balance water-limited environments. Even these tactics, majority crops—such as maize, rice, wheat—remain extremely vulnerable stress. To lessen effects drought, researchers looked into number strategies, both conventional cutting-edge methods. Conventional techniques, like application growth-promoting bacteria (PGPB) morphological modifications, remain essential improving resilience. Recent breakthroughs provided innovative alternatives such nanoparticle (NP) treatments biochar, enhance Biochar enhances soil moisture retention nutrient accessibility, whereas nanoparticles augment absorption bolster molecular resilience under Furthermore, microbial inoculants absorption, facilitating arid conditions. This review examines three staple emphasizing traditional novel approaches consequences We highlight how combining insights ecology, biochemistry, biology, technologies biochar boost production resistance water-scarce

Language: Английский

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Reprogramming assimilate partitioning in the second half of the night supports grain filling in inferior spikelets under high night temperature stress in rice

Plant Stress, Journal Year: 2025, Volume and Issue: unknown, P. 100773 - 100773

Published: Feb. 1, 2025

Language: Английский

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Gibberellin signalling mediates nucleocytoplasmic trafficking of Sucrose Synthase 1 to regulate the drought tolerance in rice

Plant Biotechnology Journal, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 26, 2025

Summary The Green Revolution (GR) has substantially improved cereal crop yields and enhanced adaptation to diverse environmental challenges. However, the molecular cellular mechanisms involving GR‐related genes that regulate drought tolerance in plants remain largely unclear. Here, we reveal gibberellin (GA) signalling repressor SLENDER RICE 1 (SLR1) negatively regulates abundance of dehydration‐responsive protein OsBURP3 enhance rice. facilitates translocation Sucrose Synthase (OsSUS1), from cytosol nucleus, thereby decreasing sucrose content. Mutation reduces nucleus accumulation OsSUS1 tolerance. SLR1 also competitively associates with release back into cytosol, resulting elevated Cytological evidences confirm contributes fine‐tuning stomata aperture rice leaves. Collectively, these findings provide a comprehensive framework for understanding role GA regulating by mediating metabolism crops.

Language: Английский

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Soil amendment leads to shifts in the rhizosphere microbial community and promotes Myriophyllum spicatum growth: a salinized aquatic system mesocosm experiment

Aquatic Ecology, Journal Year: 2025, Volume and Issue: unknown

Published: March 24, 2025

Language: Английский

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Transcriptomic analysis reveals long non-coding RNA involved in the key metabolic pathway in response to Botrytis cinerea in kiwifruit

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

Published: April 15, 2025

Language: Английский

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The Mechanisms of Interaction between Alfalfa Root Exudates and Rhizosphere Bacterial Communities for Adaptation to Salt Stress

Published: Jan. 1, 2025

Language: Английский

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Genetic, molecular and physiological crosstalk during drought tolerance in maize (Zea mays): pathways to resilient agriculture

Planta, Journal Year: 2024, Volume and Issue: 260(4)

Published: Aug. 28, 2024

Language: Английский

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Elucidation of PGPR-responsive OsNAM2 regulates salt tolerance in Arabidopsis by AFP2 and SUS protein interaction

Microbiological Research, Journal Year: 2024, Volume and Issue: 289, P. 127890 - 127890

Published: Aug. 31, 2024

Language: Английский

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Variations in Protein and Gene Expression Involved in the Pathways of Carbohydrate, Abscisic Acid, and ATP-Binding Cassette Transporter in Soybean Roots under Drought Stress

Agronomy, Journal Year: 2024, Volume and Issue: 14(4), P. 843 - 843

Published: April 18, 2024

Plant roots play crucial roles in their response to drought conditions. However, the molecular responses soybean stress remain unclear. We investigated alterations protein expression of a drought-resistant cultivar ‘Jiyu 47’ during seedling phase based on tandem mass tag (TMT) proteomics analysis. The results revealed significant variations proteins involved several metabolic pathways roots, including sucrose metabolism, abscisic acid (ABA) and ATP-binding cassette (ABC) transporter pathway. Gene Ontology Kyoto Encyclopedia Genes Genomes enrichment analyses coordinated pattern various cellular responding soybean. increased production betaine enhanced inhibition damage caused by reactive oxygen species (ROS) tolerance stress. physiological showed that ABA mechanism, ABC played an important role antioxidant defense system roots. quantitative real-time PCR up-regulated three genes (i.e., GmPYR1, GmHO-1, GmSOD) biosynthesis signaling This study provides novel insights into comprehension regulating root

Language: Английский

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