Ecofisiologia de plantas jovens de Kahya senegalensis em ambiente salino DOI Open Access
Willian Viana Campos

Published: Oct. 23, 2023

The effects of environmental elements interfere directly and indirectly in the estimation transpiration.An condition significant magnitude is saline environments, which generate abiotic stress that limits plant production.This study aimed to determine direct indirect interactions variables have on crop transpiration, stomatal conductance photosynthesis young African mahogany plants under salinity conditions a semi-arid region.The was conducted drainage lysimeters, with (Khaya senegalensis) plants, using water an electrical conductivity 0,5 dS.m -1 ; 1,25 2 2,75 3,5 4,25 e 5 - 1 total seven treatments, three replications 21 experimental units (plants), order promote optimization use resources influencing ecophysiological behavior are characterized by global radiation (Rg), photosynthetically active (Qleaf), atmospheric vapor pressure deficit (DPV) potential, were obtained season meteorological data from INPE present area.The experiment during first four months development, period considered installation northeast region country (Bahia), field at State University Southwest Bahia (UESB), campus Vitória da Conquista, collection consecutive months: January, February March 2022.The assessments transpiration (E), (Gs) (A) carried out aid diffusion porometer.steady state, model LCPro-SD.Monitoring irrigation outwith portable meter adding sodium chloride (NaCl) water, maintained 0.5 , for each units. .The regression analysis between (global potential), independent variables, (transpiration photosynthesis), dependent used mathematically modulate depending explanatory variables.With generated experiment, as variable, perfect function radiation.The value level tested lower higher water.It also observed restriction resulted decrease potential plants.Solar played important role regulating plants.Water had similar stress, resulting reduced availability, atrophy conducting vessels, nutrient absorption decreased growth production.

Language: Английский

Recent advances and mechanistic interactions of hydrogen sulfide with plant growth regulators in relation to abiotic stress tolerance in plants DOI

Bisma Hilal,

Tanveer Ahmad Khan,

Qazi Fariduddin

et al.

Plant Physiology and Biochemistry, Journal Year: 2023, Volume and Issue: 196, P. 1065 - 1083

Published: March 1, 2023

Language: Английский

Citations

28
Elucidating role of melatonin foliar spray in ameliorating adverse effects of drought stress on growth and physio-biochemical attributes of Brassica rapa plants DOI
Zuhair Hasnain, Sara Zafar, Sheeraz Usman

et al.

Scientia Horticulturae, Journal Year: 2023, Volume and Issue: 321, P. 112336 - 112336

Published: July 20, 2023

Language: Английский

Citations

24
The role of phytomelatonin receptor 1-mediated signaling in plant growth and stress response DOI Creative Commons

D. Khan,

Nan Cai, Weilin Zhu

et al.

Frontiers in Plant Science, Journal Year: 2023, Volume and Issue: 14

Published: March 10, 2023

Phytomelatonin is a pleiotropic signaling molecule that regulates plant growth, development, and stress response. In cells, phytomelatonin synthesized from tryptophan via several consecutive steps are catalyzed by decarboxylase (TDC), tryptamine 5-hydroxylase (T5H), serotonin N -acyltransferase (SNAT), -acetylserotonin methyltransferase (ASMT) and/or caffeic acid-3- O -methyltransferase (COMT). Recently, the identification of receptor PMTR1 in Arabidopsis has been considered turning point research, with function signal emerging as receptor-based regulatory strategy. addition, homologs have identified species found to regulate seed germination seedling stomatal closure, leaf senescence, responses. this article, we review recent evidence our understanding PMTR1-mediated pathways under environmental stimuli. Based on structural comparison melatonin 1 (MT1) human homologs, propose similarity three-dimensional structure receptors probably represents convergent evolution recognition different species.

Language: Английский

Citations

23
Titanium dioxide nanoparticles alleviates polystyrene nanoplastics induced growth inhibition by modulating carbon and nitrogen metabolism via melatonin signaling in maize DOI Creative Commons

Xiaoxiao Yang,

Ke Feng,

Guo Wang

et al.

Journal of Nanobiotechnology, Journal Year: 2024, Volume and Issue: 22(1)

Published: May 17, 2024

Abstract Background Nanoplastics, are emerging pollutants, present a potential hazard to food security and human health. Titanium dioxide nanoparticles (Nano-TiO 2 ), serving as nano-fertilizer in agriculture, may be important alleviating polystyrene nanoplastics (PSNPs) toxicity. Results Here, we performed transcriptomic, metabolomic physiological analyzes identify the role of Nano-TiO regulating metabolic processes PSNPs-stressed maize seedlings ( Zea mays L.). The growth inhibition by PSNPs stress was partially relieved . Furthermore, when considering outcomes obtained from RNA-seq, enzyme activity, metabolite content analyses, it becomes evident that significantly enhance carbon nitrogen metabolism levels plants. In comparison plants were not subjected , exposed exhibited enhanced capabilities maintaining higher rates photosynthesis, sucrose synthesis, assimilation, protein synthesis under stressful conditions. Meanwhile, alleviated oxidative damage modulating antioxidant systems. Interestingly, also found endogenous melatonin seedlings. P -chlorophenylalanine p -CPA, inhibitor) declined -induced tolerance. Conclusions Taken together, our data show is involved promotion through regulation metabolism. Graphical

Language: Английский

Citations

11
Dynamic physiology and transcriptomics revealed the alleviation effect of melatonin on Reaumuria trigyna under continuous alkaline salt stress DOI Creative Commons
Xuebo Li, Lei Wang, H. J. Wang

et al.

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

Published: Jan. 21, 2025

Introduction Reaumuria trigyna , a pivotal salt-tolerant plant species in Central Asian salt desert ecosystems, has garnered significant attention due to its resilience under harsh environmental conditions. This study investigates the response mechanisms of melatonin on dynamic physiology and transcriptomics critical ecosystems. Despite progress understanding tolerance, research positive effects particularly impact seed germination underlying physiological molecular mechanisms, remains limited. Methods In this study, we evaluated responses continuous alkaline stress examined effect germination. Results Our results demonstrate that at concentrations 300μmol/L significantly enhances growth promotes accumulation osmotic regulators. Notably, treatment increased rate by 35.48% compared group, which exhibited 52.15% lower than untreated control. The key mechanism identified involves melatonin’s ability increase antioxidant enzyme activity, reduce reactive oxygen hydrogen peroxide levels, alter gene expression patterns. Discussion Transcriptomic analysis revealed changes expression, photosynthetic signal transduction, phytohormone signaling, MAPK peroxisome pathway, are crucial for plant’s stress. findings provide new insights into how affects growth, germination, These address gap current scientific knowledge offer valuable theoretical support practical guidance cultivating salt-resistant crops ecological restoration salt-affected environments.

Language: Английский

Citations

1
Tolerance Mechanisms of Olive Tree (<em>Olea europaea</em>) Under Saline Conditions DOI Open Access
Mohamed El Yamani, María del Pilar Cordovilla

Published: May 30, 2024

The olive tree (Olea europaea L.) is an evergreen that occupies 19% of the woody crop area and cultivated in 67 countries on five continents. largest production concentrated Mediterranean basin, where has had enormous economic, cultural environmental impact since 7th century BC. In region, salinity stands out as one main abiotic stress factors significantly affecting agricultural production. Moreover, climate change expected to lead increased salinisation this threatening productivity. Salt causes combined damage by osmotic ionic toxicity, restricting growth interfering with multiple metabolic processes. A large variability tolerance among cultivars been described. This paper aims synthesize information from published literature adaptations salt its importance tolerance. morphological, physiological, biochemical, molecular mechanisms are reviewed.

Language: Английский

Citations

6
Potential of melatonin in enhancing antioxidant defense system and yield of maize (Zea mays L.) hybrids under saline condition DOI
Muhammad Ali, Zaffar Malik, Ghulam Hassan Abbasi

et al.

Scientia Horticulturae, Journal Year: 2023, Volume and Issue: 325, P. 112665 - 112665

Published: Nov. 13, 2023

Language: Английский

Citations

11
Melatonin: The Multifaceted Molecule in Plant Growth and Defense DOI Open Access
Murtaza Khan, Adil Hussain, Byung‐Wook Yun

et al.

International Journal of Molecular Sciences, Journal Year: 2024, Volume and Issue: 25(12), P. 6799 - 6799

Published: June 20, 2024

Melatonin (MEL), a hormone primarily known for its role in regulating sleep and circadian rhythms animals, has emerged as multifaceted molecule plants. Recent research shed light on diverse functions plant growth defense mechanisms. This review explores the intricate roles of MEL responses. is involved owing to influence regulation. promotes root elongation lateral formation enhances photosynthesis, thereby promoting overall productivity. Additionally, implicated rhythm plants, affecting key physiological processes that patterns. also exhibits antioxidant properties scavenges reactive oxygen species, mitigating oxidative stress. Furthermore, it activates pathways against various biotic stressors. production secondary metabolites contribute resistance environmental changes. MEL’s ability modulate response abiotic stresses been extensively studied. It regulates stomatal closure, conserves water, stress tolerance by activating stress-responsive genes modulating signaling pathways. Moreover, nitric oxide cooperate responses, defense, growth. Understanding mechanisms underlying actions plants will provide new insights into development innovative strategies enhancing crop productivity, improving tolerance, combating diseases. Further this area deepen our knowledge potential applications sustainable agriculture.

Language: Английский

Citations

4
NO-mediated protein tyrosine nitration crosstalks with melatonin homeostasis and HO-1 activity in mitigating salt stress in sunflower seedlings DOI Creative Commons
Neha Singh,

Geetika Kalra,

Satish C. Bhatla

et al.

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

Published: Jan. 17, 2025

Language: Английский

Citations

0
Epigenetic Evaluation of Melatonin Application in Bean (Phaseolus vulgaris L.) Genotypes Under Drought and Salt Stress Conditions DOI
Recep AYDINYURT,

Semra Yağcı,

Esra Yaprak

et al.

Plant Molecular Biology Reporter, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 24, 2025

Language: Английский

Citations

0