Transcriptome and metabolome analyses reveal the mechanisms by which H2S improves energy and nitrogen metabolism in tall fescue under low‐light stress DOI
Hanyu Li, Si Long,

Yize Yu

и другие.

Physiologia Plantarum, Год журнала: 2024, Номер 176(6)

Опубликована: Ноя. 1, 2024

Abstract Hydrogen sulfide (H 2 S) functions as a signaling molecule affecting plant growth, development, and stress adaptation. Tall fescue ( Festuca arundinacea Schreb.), bioenergy crop, encounters significant challenges in agricultural production owing to low light by shading. However, the influence of H S on tall under (LLS) remains unclear. To examine role acclimation light, we conducted combined analyses physiological traits, metabolomics, transcriptomics. These results showed that mitigated LLS‐induced inhibition photosynthesis maintained normal chloroplast ultrastructure boosting expression photosynthesis‐related genes, including PsbQ , PsbR PsaD PsaK PetH thereby enhancing synthesis carbohydrates (sucrose, starch). upregulated key genes (PFK PK IDH G6PD ) connected glycolysis, tricarboxylic acid cycle, pentose phosphate pathway promote carbon metabolism ensure supply skeletons energy required for nitrogen metabolism. application reverted accumulation nitrate changes enzymes glutamate synthase (GOGAT, EC 1.4.1.13), reductase (NR, 1.6.6.1), glutamine synthetase (GS, 6.3.1.2), dehydrogenase (GDH, 1.4.1.2), thus promoting amino decomposition produce proteins involved assimilation use efficiency well specialized Ultimately, C/N ratio fescue, balanced its metabolism, enhanced shade tolerance, increased biomass. provided new insights into resilience LLS.

Язык: Английский

Nitric oxide-mediated thermomemory: a new perspective on plant heat stress resilience DOI Creative Commons

Sheeba Naaz,

Anjali Pande, Ashverya Laxmi

и другие.

Frontiers in Plant Science, Год журнала: 2025, Номер 16

Опубликована: Фев. 28, 2025

In the intricate world of plant responses to environmental stress, concept thermomemory has emerged as a fascinating and complex phenomenon. Plants, sessile organisms, continually face challenge adapting fluctuating climates, ability “remember” prior heat stress encounters, phenomenon known is testament their remarkable adaptability. Nitric oxide (NO), versatile signaling molecule in physiology, been implicated myriad cellular processes crucial for adaptation. From its involvement stomatal regulation influence on gene expression antioxidant defense mechanisms, NO emerges central orchestrator plant’s response elevated temperatures. Exploration NO-mediated pathways provides insights into how plants not only cope with immediate but also retain memory these encounters. Unraveling molecular intricacies NO’s enhances our understanding sophisticated strategies employed by navigate changing climate, offering potential avenues innovative approaches enhancing crop resilience sustainable agriculture.

Язык: Английский

Процитировано

0
Crosstalk of methylglyoxal and calcium signaling in maize (Zea mays L.) thermotolerance through methylglyoxal-scavenging system DOI

Ru-Hua Xiang,

Jiaqi Wang, Zhong‐Guang Li

и другие.

Journal of Plant Physiology, Год журнала: 2024, Номер 303, С. 154362 - 154362

Опубликована: Окт. 4, 2024

Язык: Английский

Процитировано

2
Functional crosstalk of sucrose and G protein signaling in maize thermotolerance by modulating osmoregulation system DOI

Hong-Yan Chen,

Zhong‐Guang Li

PROTOPLASMA, Год журнала: 2024, Номер unknown

Опубликована: Дек. 19, 2024

Язык: Английский

Процитировано

1
Transcriptomics Combined with Physiology and Metabolomics Reveals the Mechanism of Tolerance to Lead Toxicity in Maize Seedling DOI

Xiaoxiang Zhang,

Min Li, Xingye Ma

и другие.

Physiologia Plantarum, Год журнала: 2024, Номер 176(5)

Опубликована: Сен. 1, 2024

Abstract Lead (Pb) exposure can induce molecular changes in plants, disrupt metabolites, and impact plant growth. Therefore, it is essential to comprehend the mechanisms involved Pb tolerance plants evaluate long‐term environmental consequences of exposure. This research focused on maize as test subject study variations biomass, root traits, genes, metabolites under hydroponic conditions conditions. The findings indicate that high stress significantly disrupts growth development, leading a reduction catalase (CAT), superoxide dismutase (SOD), peroxidase (POD) activities by 17.12, 5.78, 19.38%, respectively. Conversely, led increase malondialdehyde (MDA) contents, ultimately impacting maize. non‐targeted metabolomics analysis identified 393 categorized into 12 groups, primarily consisting organic acids derivatives, organ heterocyclic compounds, lipids lipid‐like molecules benzenoids. Further indicated induced an accumulation 174 mainly enriched seven metabolic pathways, for example phenylpropanoid biosynthesis flavonoid biosynthesis. Transcriptome revealed 1933 shared differentially expressed genes (DEGs), with 1356 upregulated 577 downregulated across all treatments. Additionally, integrated several DEGs accumulated (DAMs), including peroxidase, alpha‐trehalose, D‐glucose 6‐phosphate, which were linked cell wall These imply significance this pathway detoxification. comprehensive investigation, employing multiple methodologies, provides detailed molecular‐level insight maize's response stress.

Язык: Английский

Процитировано

0
Hydrogen Sulfide and 5‐Aminolevulinic Acid Synergistically Enhance Drought Tolerance in Tomato (Solanum lycopersicum L.) DOI Creative Commons
Cengiz Kaya, Ferhat Uğurlar

Food and Energy Security, Год журнала: 2024, Номер 13(5)

Опубликована: Сен. 1, 2024

ABSTRACT Enhancing crop drought tolerance is crucial for food security amid climate change. This study examines how 5‐aminolevulinic acid (ALA) and hydrogen sulfide (H 2 S) can improve resilience in tomato plants, which are essential sustainable production. Drought stress was induced using 12% PEG‐6000. Plants were pre‐treated with 25 mg L −1 ALA 0.1 hypotaurine (HT), followed by 0.2 mM sodium hydrosulfide (NaHS) treatment to assess the effects on plant physiological over 10 days. reduced dry weight, chlorophylls ( a b ), F v / m , leaf water potential, relative content, while increasing glycine betaine (GB) proline levels. Additionally, elevated NADPH oxidase (NOX) glycolate (GOX) activities, inducing oxidative membrane damage. NaHS enhanced growth, photosynthesis, proline, GB, ATP synthase, ATPase mitigating NOX GOX thereby reducing H O radicals. alone boosted L‐DES activity, promoting S accumulation. However, + HT levels, compromising ALA's efficacy. reinstated positive restoring Biochemical assays confirmed promoted accumulation, bolstering antioxidants, lipid peroxidation, suggesting their potential tomatoes.

Язык: Английский

Процитировано

0
Transcriptome and metabolome analyses reveal the mechanisms by which H2S improves energy and nitrogen metabolism in tall fescue under low‐light stress DOI
Hanyu Li, Si Long,

Yize Yu

и другие.

Physiologia Plantarum, Год журнала: 2024, Номер 176(6)

Опубликована: Ноя. 1, 2024

Abstract Hydrogen sulfide (H 2 S) functions as a signaling molecule affecting plant growth, development, and stress adaptation. Tall fescue ( Festuca arundinacea Schreb.), bioenergy crop, encounters significant challenges in agricultural production owing to low light by shading. However, the influence of H S on tall under (LLS) remains unclear. To examine role acclimation light, we conducted combined analyses physiological traits, metabolomics, transcriptomics. These results showed that mitigated LLS‐induced inhibition photosynthesis maintained normal chloroplast ultrastructure boosting expression photosynthesis‐related genes, including PsbQ , PsbR PsaD PsaK PetH thereby enhancing synthesis carbohydrates (sucrose, starch). upregulated key genes (PFK PK IDH G6PD ) connected glycolysis, tricarboxylic acid cycle, pentose phosphate pathway promote carbon metabolism ensure supply skeletons energy required for nitrogen metabolism. application reverted accumulation nitrate changes enzymes glutamate synthase (GOGAT, EC 1.4.1.13), reductase (NR, 1.6.6.1), glutamine synthetase (GS, 6.3.1.2), dehydrogenase (GDH, 1.4.1.2), thus promoting amino decomposition produce proteins involved assimilation use efficiency well specialized Ultimately, C/N ratio fescue, balanced its metabolism, enhanced shade tolerance, increased biomass. provided new insights into resilience LLS.

Язык: Английский

Процитировано

0