Physiological and Flavonoid Metabolic Responses of Black Locust Leaves to Drought Stress in the Loess Plateau of China DOI Open Access
Yan Wang, Peng Ning, Binbin Liu

и другие.

Forests, Год журнала: 2025, Номер 16(4), С. 695 - 695

Опубликована: Апрель 17, 2025

Drought threatens the stability of artificial black locust forests on Loess Plateau, yet there is limited research physiological and metabolic responses mature to drought stress. This study employed a throughfall exclusion system—i.e., moderate (40% reduction), extreme (80% 0% reduction for control—to analyze leaf microstructure, relative water content (RWC), osmotic adjustment substances, hormone levels, flavonoid metabolites in under controlled The results demonstrated that as stress intensified, stomatal aperture density decreased, while trichome length exhibited significant increases. MDA, proline, IAA, substances (soluble protein, reducing sugar, total sugar) first increased then decreased intensified. A 245 compounds were identified through metabolomic analysis, among which 91 differential expression treatments. Notably, 37 flavonoids, including flavonols glycosylated derivatives, consistently upregulated. These findings suggest can lead accumulation flavonoids. explored trees stress, offering insights selecting drought-resistant species vegetation restoration informing ecological management practices arid regions.

Язык: Английский

Jasmonic acid regulates plant development and orchestrates stress response during tough times DOI
Omar A. Hewedy, Nabil I. Elsheery,

Ali M. Karkour

и другие.

Environmental and Experimental Botany, Год журнала: 2023, Номер 208, С. 105260 - 105260

Опубликована: Фев. 8, 2023

Язык: Английский

Процитировано

70

Mechanistic Concept of Physiological, Biochemical, and Molecular Responses of the Potato Crop to Heat and Drought Stress DOI Creative Commons
Milan Kumar Lal, Rahul Kumar Tiwari, Awadhesh Kumar

и другие.

Plants, Год журнала: 2022, Номер 11(21), С. 2857 - 2857

Опубликована: Окт. 26, 2022

Most cultivated potatoes are tetraploid, and the tuber is main economic part that consumed due to its calorific nutritional values. Recent trends in climate change led frequent occurrence of heat drought stress major potato-growing regions worldwide. The optimum temperature for production 15–20 °C. High-temperature water-deficient conditions during growing season result several morphological, physiological, biochemical, molecular alterations. morphological changes under may affect process stolon formation, tuberization, bulking, ultimately affecting yield. This condition also affects physiological responses, including an imbalance allocation photoassimilates, respiration, water use efficiency, transpiration, carbon partitioning, source–sink relationship. biochemical responses involve maintaining ionic homeostasis, synthesizing shock proteins, achieving osmolyte balance, generating reactive oxygen species, various pathways. Different networks include both gene regulation transcription factors involved at level combination hot conditions. article attempts present integrative content physio-biochemical combined effects drought, prominent change. Taking into account all these aspects there immediate need comprehensive screening germplasm application appropriate approaches tactics produce potato cultivars perform well heat-affected areas.

Язык: Английский

Процитировано

67

Class III plant peroxidases: From classification to physiological functions DOI
Cléverson D.T. Freitas, José Hélio Costa, Thais Andrade Germano

и другие.

International Journal of Biological Macromolecules, Год журнала: 2024, Номер 263, С. 130306 - 130306

Опубликована: Фев. 20, 2024

Язык: Английский

Процитировано

11

Effect of seed priming with auxin on ROS detoxification and carbohydrate metabolism and their relationship with germination and early seedling establishment in salt stressed maize DOI Creative Commons
Hasna Ellouzi,

Imen Ben Slimene Debez,

Souhir Amraoui

и другие.

BMC Plant Biology, Год журнала: 2024, Номер 24(1)

Опубликована: Июль 25, 2024

Abstract As crucial stages in the plant ontogeny, germination and seedling establishment under adverse conditions greatly determine staple crop growth productivity. In context of green technologies aiming to improve yield, seed priming is emerging as an effective approach enhance vigor performance salt stress. this study, we assess efficiency with indole-3-acetic acid (IAA) mitigating effects stress on maize ( Zea mays L.) seedlings during early stages. unprimed seeds, reduced indices, (both radicle coleoptile) growth, together decreased tissue hydration. However, using IAA significantly improved response, reflected by increased dynamics, establishment, water status. Besides, from IAA-primed seeds showed a higher activity α-amylase, resulting sugar contents roots coleoptiles salt-stressed plants. Further, IAA-seed stimulated accumulation endogenous seedlings, concomitance significant effect reactive oxygen species detoxification lipid peroxidation prevention. Indeed, our data revealed antioxidant enzyme activities, differentially regulated coleoptiles, leading activities enzymes (SOD, CAT GPX). summary, gained study further highlight potential modulating interactions between multiple signaling pathways seed, endowing enhanced sustained tolerance subsequent

Язык: Английский

Процитировано

10

Effect of Plant Growth-Promoting Rhizobacteria Synthetic Consortium on Growth, Yield, and Metabolic Profile of Lettuce (Lactuca sativa L.) Grown Under Suboptimal Nutrient Regime DOI Creative Commons

Renée Abou Jaoudé,

Francesca Luziatelli, Anna Grazia Ficca

и другие.

Horticulturae, Год журнала: 2025, Номер 11(1), С. 64 - 64

Опубликована: Янв. 9, 2025

Soilless cultivation allows for the exploitation of benefits plant growth-promoting rhizobacteria (PGPR) without loss efficacy observed with soil inoculation. In this study, we investigated effects a PGPR consortium on growth, ecophysiology, and metabolic profile lettuce (Lactuca sativa L.) grown in an aeroponic system under low-nutrient regime. Overall, biomass increased by 25% PGPR-inoculated plants due to enhanced leaf root growth. The rise was primarily increase number average mass, coupled higher total area. addition, inoculated exhibited altered anatomy characterized palisade parenchyma thickness reduced airspace area, suggesting improved photosynthetic efficiency changes mesophyll conductance. morphology also altered, showing lateral development. Furthermore, inoculation induced significant reprogramming leaves, affecting several pathways related development, stress responses. These findings provide valuable insights into intricate dialog between beneficial microbes demonstrate that integration soilless culture analysis ecophysiological, anatomical, metabolomic responses can be powerful approach accelerate design new consortia use as microbial biostimulants.

Язык: Английский

Процитировано

1

A newly isolated Bacillus pumilus strain SH-9 modulates response to drought stress in soybean via endogenous phytohormones and gene expression (Daegu, South Korea) DOI Creative Commons
Shifa Shaffique, Muhammad Imran, Arjun Adhikari

и другие.

Plant Stress, Год журнала: 2023, Номер 10, С. 100279 - 100279

Опубликована: Ноя. 2, 2023

Drought stress hampers plant growth and productivity. Some microorganisms mitigate in plants; however, the molecular mechanism by which they interact with plants mitigating remains unknown. This study aimed to determine growth–promoting rhizobacteria modulate drought soybean. Results indicated that B. pumilus SH-9 (SH-9) produced indole acetic acid siderophore, had capacity for phosphate solubilization. The test polyethylene glycol 6000 (PEG) tolerance, showed could withstand high PEG concentration (up 30%). isolate was identified a strain using 16s ribosomal DNA gene sequence. Inoculation of soybeans enhanced soybean biomass 20%, even under stress. due reduction endogenous phytohormone (abscisic acid) upregulation antioxidant defense system (SOD, POD, APX, GSH) SH-9. Furthermore, transcription factors GmDREB2, GmbZIP1, GmNCED3 were involved. also improved physio-morphological characteristics such as biomass, chlorophyll, seedling length, relative water contents stressed plant. Overall, findings this enhances promoting solubilization, exopolysaccharides. We, therefore, conclude is drought-tolerant variant can improve via modulation expression gene, profile.

Язык: Английский

Процитировано

21

Ultraviolet-B and Heavy Metal-Induced Regulation of Secondary Metabolites in Medicinal Plants: A Review DOI Creative Commons

Avantika Pandey,

Madhoolika Agrawal, Shashi Bhushan Agrawal

и другие.

Metabolites, Год журнала: 2023, Номер 13(3), С. 341 - 341

Опубликована: Фев. 24, 2023

Despite a rich history and economic importance, the potential of medicinal plants has not been fully explored under different abiotic stress conditions. Penetration UV-B radiation contamination heavy metals are two important environmental for with remarkable influence on defense-related pharmaceutically secondary metabolites plants. metal may become critical issue that either positively or negatively affects quality quantity metabolites. Such effects result from changes in expression level genes encode corresponding enzymes inactivation and/or stimulation specific involved biosynthetic pathways Therefore, comprehensive study impact individually combination biosynthesis accumulation is discussed present review.

Язык: Английский

Процитировано

20

Comparative Efficacy of Melatonin and Brassinolide in Mitigating the Adverse Effects of Cadmium on Wolffia arrhiza DOI Open Access
Magdalena Chmur, Andrzej Bajguz

International Journal of Molecular Sciences, Год журнала: 2025, Номер 26(2), С. 692 - 692

Опубликована: Янв. 15, 2025

Melatonin (MT) and brassinolide (BL) are phytohormones that regulate various physiological processes in plants. This study investigates their effects on Wolffia arrhiza when exposed to cadmium (Cd). Plant hormones were quantified using liquid chromatography-mass spectrometry, while photosynthetic pigments phytochelatins (PCs) analyzed through high-performance chromatography. Protein, monosaccharide levels, antioxidant activities also spectrophotometrically measured. The findings reveal MT BL treatment decreased Cd accumulation W. compared plants only Cd. was particularly effective reversing Cd-induced growth inhibition reducing stress markers more significantly than BL. It enhanced activity maintained higher levels of pigments, proteins, sugars. Although less these aspects, it promoted greater synthesis glutathione PCs Cd-exposed duckweed. Overall, both alleviate the negative impact arrhiza, confirming crucial role supporting plant health under metal conditions.

Язык: Английский

Процитировано

1

Enhancing drought tolerance in horticultural plants through plant hormones: a strategic coping mechanism DOI Creative Commons

Shanxia Huang,

Songheng Jin

Frontiers in Plant Science, Год журнала: 2025, Номер 15

Опубликована: Янв. 20, 2025

Abiotic stresses are considered as a significant factor restricting horticultural crop productivity and quality. Drought stress is major environmental constraint among the emerging concerns. Plants have susceptibility to drought stress, resulting in marked decline production during last several decades. The development of effective strategies mitigate essential for sustainable agriculture food security, especially considering continuous growth world population. Several studies suggested that exogenous application phytohormone plants can improve tolerance by activating molecular physiological defense systems. Phytohormone pretreatment potential approach alleviating plants. In addition, melatonin, salicylic acid, jasmonates, strigolactones, brassinosteroids, gamma-aminobutyric acid phytohormones function regulators effects stress. These hormones frequently interact with one another survival drought-stressed environments. To sum up, this review will predominantly elucidate role related mechanisms across various horticulture species.

Язык: Английский

Процитировано

1

The role of melatonin in regulating horticultural crop production under various abiotic stresses DOI
Liping Huang,

Wenxuan Fu,

Yujing Zhang

и другие.

Scientia Horticulturae, Год журнала: 2023, Номер 323, С. 112508 - 112508

Опубликована: Окт. 6, 2023

Язык: Английский

Процитировано

15