Changes in growth, photosynthetic pigments and antioxidant system of Hordeum vulgare plant grown under salinity stress via signal molecules application

Vegetos, Journal Year: 2024, Volume and Issue: 37(5), P. 1966 - 1982

Published: April 30, 2024

Language: Английский

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Enhancing Drought Tolerance and Water Productivity of Diverse Maize Hybrids (Zea mays) Using Exogenously Applied Biostimulants under Varying Irrigation Levels

Agronomy, Journal Year: 2023, Volume and Issue: 13(5), P. 1320 - 1320

Published: May 8, 2023

Water deficit is a decisive challenge that tremendously affects maize physiological functions and productivity. Hence, it crucial to ameliorate its tolerance drought stress, in particular under abrupt climate change growing population. The present study aimed explore the influence of exogenously sprayed moringa seed extract (Moringa oleifera) α-tocopherol on physio-biochemical, morphological, yield attributes six diverse hybrids three irrigation levels poor-fertility sandy soil. applied regimes were based estimated crop evapotranspiration (ET) using FAO Penman–Monteith equation. A split–split plot arrangement with randomized complete block design replicates was for different treatments. Irrigation (100% ET, 75% ET 50% ET) established main plots, while foliar applications (moringa α-tocopherol) located subplots assessed (SC162, SC166, SC167, SC168, SC176, SC178) subsubplots. Mild (75% severe (50% stress gradually reduced gas exchange, photosynthetic efficiency, water relations, traits compared well-watered conditions ET). However, application or effective reinforcing by enhancing accumulation osmoprotectants, improving antioxidant enzymes, decreasing peroxidation membrane lipids electrolyte leakage untreated control. These positive impacts reflected boosting productivity conditions. agronomic performance considerably varied SC178 exhibited best mild other hybrids. Consequently, integration tolerant such as an efficient approach ameliorating water-scarce arid environments.

Language: Английский

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Biostimulants-Based Amino Acids Augment Physio-Biochemical Responses and Promote Salinity Tolerance of Lettuce Plants (Lactuca sativa L.)

Horticulturae, Journal Year: 2023, Volume and Issue: 9(7), P. 807 - 807

Published: July 14, 2023

Studying the biostimulation effect of amino acids indicated their possible role in salt stress mitigation. In this investigation, six exogenous (alanine (Ala), arginine (Arg), glutamine (Glu), glycine (Gly), methionine (Met), and proline (Pro)) at 0.5 g/L were sprayed to evaluate impact on lettuce plants cultivated under simulated conditions. Photosynthetic pigments, ion absorption, endogenous contents, catalase (CAT), peroxidase (POD) enzyme activities determined. A significant alleviation was noticed when EAAs used stress-induced plants, applying Gly, Met, Pro improved plant status The highest electric conductivity (568 μS/g) testified from control treatment (50 mM NaCl), while reduced electrical (EC), result located between 469 558 μS/g. AAs alleviated Cl- anions leaves by 25% comparison plants. Na+ cations with acids. contrast, promoted K+ uptake, Arg presented contents (3226 μg/g). chlorophyll (chl a chl b) concentrations compared treatment, Met produced maximum content, carotene (car) significantly augmented applied. highly generated non-stressed (Std) control. Under salinity stress, application enhanced proteinogenic expression. Compared Ctl diminished other treatments, which fell over 40% sprayed.

Language: Английский

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Exogenous arginine promotes the coproduction of biomass and astaxanthin under high-light conditions in Haematococcus pluvialis

Bioresource Technology, Journal Year: 2023, Volume and Issue: 393, P. 130001 - 130001

Published: Nov. 11, 2023

Language: Английский

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Mitigating drought stress in wheat plants (Triticum Aestivum L.) through grain priming in aqueous extract of spirulina platensis

BMC Plant Biology, Journal Year: 2024, Volume and Issue: 24(1)

Published: April 2, 2024

Abstract Background The study focuses on the global challenge of drought stress, which significantly impedes wheat production, a cornerstone food security. Drought stress disrupts cellular and physiological processes in wheat, leading to substantial yield losses, especially arid semi-arid regions. research investigates use Spirulina platensis aqueous extract (SPAE) as biostimulant enhance resistance two Egyptian cultivars, Sakha 95 (drought-tolerant) Shandawel 1 (drought-sensitive). Each cultivar’s grains were divided into four treatments: Cont, DS, SPAE-Cont, SPAE + DS. Cont DS presoaked distilled water for 18 h while SPAE-Cont 10% SPAE, then all treatments cultivated 96 days semi-field experiment. During heading stage (45 days: 66 days), treatments, not irrigated. In contrast, irrigated during entire experiment period. At end stage, agronomy, pigment fractions, gas exchange, carbohydrate content parameters flag leaf assessed. Also, at harvest attributes biochemical aspects yielded (total carbohydrates proteins) evaluated. Results demonstrated that enhanced growth vigor, photosynthetic rate, components both cultivars under standard conditions. Specifically, increased rate by up 53.4%, number spikes 76.5%, economic 190% control 153% drought-stressed pre-soaked SPAE. Leaf exchange parameters, positively influenced suggesting their effectiveness mitigating adverse effects, improving crop performance. Conclusion application S. appears ameliorate effects enhancing metabolism, productivity studied. This indicates potential an eco-friendly resilience, nutrition, various environmental challenges, thus contributing

Language: Английский

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Differential Transcription Profiling Reveals the MicroRNAs Involved in Alleviating Damage to Photosynthesis under Drought Stress during the Grain Filling Stage in Wheat

International Journal of Molecular Sciences, Journal Year: 2024, Volume and Issue: 25(10), P. 5518 - 5518

Published: May 18, 2024

To explore the possible novel microRNA (miRNA) regulatory pathways in Zhengmai 1860, a newly cultivated drought-tolerant wheat (Triticum aestivum L.) cultivar, miRNA transcriptome sequencing of flag leaves drought-sensitive variety Zhoumai 18, and drought-resistant Bainong 207 was performed during grain filling stage. We also observed changes chloroplast ultrastructure, phytohormone levels, antioxidant- photosynthesis-related physiological indicators three varieties. The results showed that 1860 had higher chlorophyll contents net photosynthetic rates than those 18 under drought stress stage; addition, structure more complete. However, there no significant difference between 207. MiRNA analysis revealed differential expression miRNAs mRNAs exhibited variable specificity. KEGG pathway enrichment indicated most genes were enriched MAPK signaling pathway, plant hormone signal transduction, antennae protein, amino acid carbohydrate metabolism. In cultivar tae-miR408 targeted to regulate allene oxide synthase (AOS) gene, inhibit its expression, reduce AOS content, decrease synthesis jasmonic (JA) abscisic (ABA). this study suggest could improve performance by inhibiting involved JA through conditions. Moreover, multiple may target chlorophyll, antioxidant enzymes, other related pathways; thus, it is provide theoretical basis for molecular breeding.

Language: Английский

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Arginine promotes seed energy metabolism, increasing wheat seed germination at low temperature

The Crop Journal, Journal Year: 2024, Volume and Issue: 12(4), P. 1185 - 1195

Published: July 14, 2024

Low temperatures during germination inhibit seed growth, lead to small and weak seedlings, significantly reduce the wheat yield. Alleviating adverse effects of low temperature on is highly important for achieving high stable yields. In this study, Tongmai 6 (insensitive) Zhengmai 113 (sensitive), which have different low-temperature sensitivities were treated with germination. The transcriptome, metabolome physiological data revealed that decreased rate, downregulated expression a large number genes involved in regulating glycometabolism, inhibited carbon, nitrogen (especially amino acids) energy metabolism seeds. Arginine content increased at temperature, its increase low-temperature-tolerant variety was greater than sensitive variety. priming experiment showed treatment an appropriate concentration arginine improved rate. conversion starch soluble sugar under exogenous conditions, key metabolites increased, utilization ATP seeds increased. Taken together, by relieving inhibition carbon improving metabolism.

Language: Английский

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Influence of indole acetic acid, arginine and mango fruit waste biochar on nutrients, chlorophyll contents and antioxidants of Fenugreek in salt affected soil

Scientific Reports, Journal Year: 2025, Volume and Issue: 15(1)

Published: Jan. 2, 2025

Language: Английский

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Impact of TaFtsZ2 overexpression and mutation on wheat starch granule characteristics and quality

Carbohydrate Polymers, Journal Year: 2025, Volume and Issue: 353, P. 123267 - 123267

Published: Jan. 15, 2025

Language: Английский

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Interplay of light and nitrogen for plant growth and development

The Crop Journal, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

Language: Английский

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