Effects of Mars Global Simulant (MGS-1) on Growth and Physiology of Sweet Potato: A Space Model Plant DOI Open Access
Chinnannan Karthik,

Prapooja Somagattu,

Hyndavi Yammanuru

et al.

Published: Nov. 15, 2023

Growing food autonomously on Mars is challenging due to the Martian soil's low nutrient content and high salinity. Understanding how plants adapt evaluating their nutritional attributes are pivotal for sustained missions. This research delved into regeneration, stress tolerance, dietary metrics of sweet potato (Ipomoea batatas) across different Global Simulant (MGS-1) concentrations (0, 25, 50, 75%). In our greenhouse experiment, 75% MGS-1 concentration most significantly inhibited growth, storage root biomass, chlorophyll content. also elevated plant tissues' H2O2, proline, ascorbic acid levels. Higher exposures (50 75%) notably boosted vital amino acids sugar groups in plant's roots. Yet, increased diminished total C: N ratio elemental composition both vines summary, exhibited optimal antioxidant properties, yield, profiles at 25% exposure, compared higher concentrations. study underscores need future interventions, like enhancement controlled metal accessibility, render it a suitable space-based studies.

Language: Английский

Potentiality of Melatonin for Reinforcing Salinity Tolerance in Sorghum Seedlings via Boosting Photosynthetic Pigments, Ionic and Osmotic Homeostasis and Reducing the Carbonyl/Oxidative Stress Markers DOI Creative Commons
Nesma M. Helal, Hani Saber Saudy, Maha M. A. Hamada

et al.

Journal of soil science and plant nutrition, Journal Year: 2024, Volume and Issue: unknown

Published: June 6, 2024

Abstract Salinity stress has become a major threat to worldwide crop production. Exogenous melatonin (MT) appeared as promising treatment against salt in several plant species. However, MT effect on the tolerance of sorghum plants under different saline conditions (moderate and severe) remains ambiguous. This study was carried out explore impact (0, 50, 100 200 µM) foliar application seedlings grown moderate severe using sodium chloride, NaCl (75 150 µM NaCl). treatments were applied solution sand medium pots. The results demonstrated that rising salinity level negatively affected growth, photosynthetic pigments (chlorophylls carotenoids), leaf water status ionic homeostasis (sodium, potassium, calcium ions). Applied-MT specifically at or enhanced osmotic balance, cell membrane stabilizing relative content. These effects associated with an obvious restriction hydrogen peroxide, lipid peroxidation (malondialdehyde content) methylglyoxal. Moreover, antioxidant activities peroxidase, catalase, superoxide dismutase, ascorbate peroxidase enzymes modulated by treatments. Molecular docking modeling assessment illustrated top-ranked confirmations between target enzymes. forms multiple bonds key amino acid residues for glycine (A: 162), tryptophan 41), leucine 165), tyrosine 235) active site peroxidase. alkyl interactions 37), arginine 38) cysteine 168) also contribute its high affinity. Despite is commonly moderately tolerant stress, this confirmed sensitivity wide range early growth stages. Melatonin spraying led improvements various morphological, physiological biochemical mechanisms harmonized together confer resistance salt-stressed seedlings.

Language: Английский

Citations

9
Relative effects of melatonin and hydrogen sulfide treatments in mitigating salt damage in wheat DOI Creative Commons

Sheen Khan,

Ameena Fatima Alvi,

Mehar Fatma

et al.

Frontiers in Plant Science, Journal Year: 2024, Volume and Issue: 15

Published: July 25, 2024

Soil salinity poses a significant threat to agricultural productivity, impacting the growth and yield of wheat (

Language: Английский

Citations

5
Effects of melatonin, proline, and salicylic acid on seedling growth, photosynthetic activity, and leaf nutrients of sorghum under salt stress DOI Creative Commons
Mehmet Sait Kiremit, Elif ÖZTÜRK, Hakan Arslan

et al.

Plant Direct, Journal Year: 2024, Volume and Issue: 8(3)

Published: March 1, 2024

Abstract Soil salinization poses a significant challenge to the sustainability and productivity of agriculture worldwide. This issue continues hinder plant growth, requiring innovative solutions alleviate salt stress. Moreover, climate change accelerates soil salinization, which may soon spread previously unaffected agricultural areas. Therefore, present study evaluated potential role different seed priming agents (hydro (H), salicylic acid (SA), proline (P), melatonin (MEL)) on seedlings leaf macro micronutrients sorghum grown under four (.27, 2.5, 5.0, 8.0 dS m −1 ) salinity conditions. drastically reduced all growth parameters seedlings, primarily reduction in traits, was remarkable after 2.5 salinity. In addition, height, shoot fresh weight, stomata were by 40.8%, 74.6%, 36.5%, respectively, at compared .27 . SA‐ MEL‐primed seeds mitigated harmful effects reducing Na + accumulation leaves increasing K /Na Ca 2+ ratios photosynthetic activity However, Zn , Mn Cu contents increased with salinity, these nutrients also improved SA, MEL, P. Considering nutrients, had better macro‐ micro‐nutrient uptake capacities than H, P treatments high Finally, showed that MEL‐induced improvement tolerance related enhanced nutritional status, activity, biomass production salinized

Language: Английский

Citations

4
Changes in the Metabolome of Flue-Cured Tobacco by Dioctyl Phthalate and Erucamide: Mechanism of Continuous Monocropping DOI
Yihong Pan, Guohuan Xiong,

Qiulian Peng

et al.

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

Published: March 10, 2025

Language: Английский

Citations

0
MsbZIP55 regulates salinity tolerance by modulating melatonin biosynthesis in alfalfa DOI Creative Commons
Tingting Wang, Jiaqi Yang, Jinjun Cao

et al.

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

Published: March 13, 2025

Summary Soil salinity is a severe abiotic stress that damages plant growth and development. As an antioxidant free radical scavenger, melatonin well known for helping plants survive conditions, including stress. Here, we report the salt‐related gene MsSNAT1 , encoding rate‐limiting biosynthesis enzyme, located in chloroplast contributes to tolerance alfalfa. We found overexpressing alfalfa lines exhibited higher endogenous levels increased salt by promoting systems improving ion homeostasis. Furthermore, through combination of transcriptome sequencing, dual‐luciferase assays transgenic analysis, identified basic leucine zipper (bZIP) transcription factor, MsbZIP55, associated with response expression. EMSA analysis ChIP‐qPCR uncovered MsbZIP55 can recognize directly bind promoter vitro vivo . acts as negative regulator expression, thereby reducing biosynthesis. Morphological revealed conferred sensitivity Na + /K ratio lower activities, which could be alleviated applying exogenous melatonin. Silencing RNA interference resulted expression promoted enhancing system enzyme activities Our findings indicate MsbZIP55‐MsSNAT1 module plays crucial role regulating while facilitating protection against These results shed light on regulatory mechanism related

Language: Английский

Citations

0
Exogenous melatonin delays leaves senescence and enhances saline and alkaline stress tolerance in grape seedlings DOI Creative Commons
Zhongyi Yang,

Xixi Yang,

Shimei Wei

et al.

Plant Signaling & Behavior, Journal Year: 2024, Volume and Issue: 19(1)

Published: April 22, 2024

Saline and alkaline stress is one of the major abiotic stresses facing agricultural production, which severely inhibits growth yield plant. The application plant regulators can effectively prevent crop reduction caused by saline stress. Exogenous melatonin (MT) act as a signaling molecule involved in regulation variety physiological processes plants, has been found to play key role enhancing improvement tolerance stresses. However, effects exogenous MT on table grape seedlings its mechanism have not clarified. aim this study was investigate morphological (Vitis vinifera L.) under results showed that resulted yellowing wilting leaves decrease chlorophyll content, whereas alleviated degradation seedling promoted accumulation soluble sugars proline content. In addition, increased activity antioxidant enzymes, scavenging reactive oxygen species (ROS) generated conclusion, stress, enhanced resistance promote development industry areas.

Language: Английский

Citations

2
Physiological and Molecular Responses of Red Amaranth (Amaranthus cruentus L.) and Green Amaranth (Amaranthus hypochondriacus L.) to Salt Stress DOI Creative Commons

Tartil M. Emam,

A. Hosni,

Ahmed Ismail

et al.

Journal of soil science and plant nutrition, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 18, 2024

Abstract Salinization, as a serious climate change phenomenon, continues to cause critical issues for soils and crops. Abundance of genetic diversity plants could contribute in solving the impacts salinity. However, relations between physiological molecular traits plant species need deep investigation interpretation. Pot experiments were conducted greenhouse investigate difference behavior two amaranth when they beforehand subjected salinity-stress conditions, specifically on some specific characteristics. After 45 days from transplanting, salt stress was induced using 150 mM sodium chloride solution. Treatments arranged randomized complete block design three replications. 0, 2, 6, 10, 24 h, samples collected evaluate data well gene expression. The immediately frozen liquid nitrogen stored -80⁰ C ultralow temperature refrigerators. Findings revealed that red ( Amaranthus cruentus ) more tolerant saline than green hypochondriacus ). Result malondialdehyde (MDA) content increased after 2 h then decreased (after 6 10 h) before rising again h. In amaranth, MDA initially increasing later decreasing zigzag pattern ending an increase There initial steep rise proline which continued still moderately till it stopped. Results also showed gave higher value superoxide dismutase (SOD) activity compared with all tested salinity exposure times. expression four genes assessed through quantitative PCR indicated efficiency SOS1, HKT1, NHX1, DGR2 genes, encode adaptation-related proteins under stress. summary, current work demonstrated be efficient resource improving salt-tolerant genotypes belonging genus.

Language: Английский

Citations

2
Effects of Mars Global Simulant (MGS-1) on Growth and Physiology of Sweet Potato: A Space Model Plant DOI Creative Commons
Chinnannan Karthik,

Prapooja Somagattu,

Hyndavi Yammanuru

et al.

Plants, Journal Year: 2023, Volume and Issue: 13(1), P. 55 - 55

Published: Dec. 23, 2023

Growing food autonomously on Mars is challenging due to the Martian soil’s low nutrient content and high salinity. Understanding how plants adapt evaluating their nutritional attributes are pivotal for sustained missions. This research delves into regeneration, stress tolerance, dietary metrics of sweet potato (Ipomoea batatas) across different Global Simulant (MGS-1) concentrations (0, 25, 50, 75%). In our greenhouse experiment, 75% MGS-1 concentration significantly inhibited growth, storage root biomass, chlorophyll content. also elevated plant tissues’ H2O2, proline, ascorbic acid levels. Higher exposures (50 75%) notably boosted vital amino acids sugar groups in plant’s roots. However, increased diminished total C:N ratio elemental composition both vines summary, exhibited optimal antioxidant properties, yield, profiles at 25% exposure as compared higher concentrations. study underscores need future interventions, like enhancements controlled metal accessibility, render a suitable space-based studies.

Language: Английский

Citations

4
Impact of exogenous melatonin foliar application on physiology and fruit quality of wine grapes (Vitis vinifera) under salt stress DOI
Yuanyuan Li, Congcong Zhang, Xu Lu

et al.

Functional Plant Biology, Journal Year: 2024, Volume and Issue: 51(6)

Published: May 14, 2024

Soil salinisation is an important abiotic stress faced in grape cultivating, leading to weakened plant vigour and reduced fruit quality. Melatonin as a novel hormone has shown positive exogenous application value. Therefore, this study used wine (Vitis vinifera) ‘Pinot Noir’ test material investigate the changes of foliar spraying with different concentrations melatonin on physiology quality grapes field under simulated salt (200 mmol L−1 NaCl). The results showed that significantly increased intercellular CO2 concentration, maximum photochemical quantum yield PSII, relative chlorophyll ascorbic acid content leaves, well single spike weight, 100-grain transverse longitudinal diameters, malic acid, α-amino nitrogen ammonia fruits, decreased initial fluorescence value ascorbate peroxidase activity, glutathione content, ratio tartaric plants stress. Results comprehensive evaluation affiliation function indicated 100 μmol treatment had best effect reducing grapes. In summary, could enhance tolerance by improving photosynthetic capacity promoting development formation, these provide new insights into involvement improvement crop, some theoretical basis for industrialisation stress-resistant cultivation techniques

Language: Английский

Citations

1
Melatonin As a Protective Agent Against Environmental Stresses: A Review into Its Molecular Regulation in Plants DOI Open Access

Buti Obaid Saeed Alfalahi,

Imane Lamdjad,

Noaman Atallah Alheety

et al.

OBM Genetics, Journal Year: 2024, Volume and Issue: 08(02), P. 1 - 10

Published: June 12, 2024

Understanding the impact of melatonin (N-acetyl-5-methoxytryptamine) on plant gene expression is crucial for unlocking its full potential as a tool crop improvement and stress tolerance. Melatonin has emerged to have several influences transcriptional activity numerous genes, helping orchestrate responses environmental cues. Furthermore, it been shown that signaling pathways control downstream ensure proper growth development. Therefore, clearing out complex interaction between enormous further our knowledge biology develop novel farming techniques. In this review, we gathered recent studies elucidate role applied in regulating stress-responsive genes under various abiotic stresses.

Language: Английский

Citations

1