Application of biostimulants promotes growth and productivity by fortifying the antioxidant machinery and suppressing oxidative stress in faba bean under various abiotic stresses

Desoky, El-Sayed M.; Elrys, Ahmed S.; Mansour, Elsayed; Eid, Rania S. M.; Selem, Eman; Rady, Mostafa M.; Ali, Esmat F.; Mersal, Gaber A.M.; Semida, Wael M.

doi:10.1016/j.scienta.2021.110340

Cited by 51 publications

(29 citation statements)

References 92 publications

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“…At the seedling stage, 119 diverse sesame genotypes were grown under four durations of waterlogged conditions (12,24,48, and 72 h) to identify tolerant and sensitive genotypes. All genotypes died after 72 h of waterlogged conditions; however, 16, 38, and 54 genotypes survived after 48, 24, and 12 h of waterlogged conditions, respectively (Table 3).…”

Section: Survival Percentagementioning

confidence: 99%

“…Plants have a complex defense antioxidant system to mitigate the oxidative deteriorations caused by ROS [22][23][24]. The antioxidant system includes low molecular weight antioxidants, such as proline and antioxidant enzymes, which include ascorbate peroxidase (APX), catalase (CAT), superoxide dismutase (SOD), glutathione reductase (GR), and guaiacol peroxidase (GPX) [25][26][27][28].…”

Section: Introductionmentioning

confidence: 99%

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Assessing the Response of Diverse Sesame Genotypes to Waterlogging Durations at Different Plant Growth Stages

Habibullah

Sarkar

Islam

et al. 2021

Plants

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Sesame is sensitive to waterlogging, and its growth is devastatingly impacted under excess moisture conditions. Thus, waterlogging tolerance is crucial to alleviate yield constraints, particularly under expected climate change. In this study, 119 diverse sesame genotypes were screened for their tolerance to 12, 24, 48, and 72 h of waterlogging relative to non-waterlogged conditions. All plants died under 72 h of waterlogging, while 13.45%, 31.93%, and 45.38% of genotypes survived at 48, 24, and 12 h, respectively. Based on the seedling parameters and waterlogging tolerance coefficients, genotypes BD-7008 and BD-6985 exhibited the highest tolerance to waterlogging, while BD-6996 and JP-01811 were the most sensitive ones. The responses of these four genotypes to waterlogged conditions were assessed at different plant growth stages—30, 40, and 50 days after sowing (DAS)—versus normal conditions. Waterlogging, particularly when it occurred within 30 DAS, destructively affected the physiological and morphological characteristics, which was reflected in the growth and yield attributes. Genotype BD-7008, followed by BD-6985, exhibited the highest chlorophyll and proline contents as well as enzymatic antioxidant activities, including superoxide dismutase (SOD), peroxidase (POD), and catalase (CAT). These biochemical and physiological adjustments ameliorated the adverse effects of waterlogging, resulting in higher yields for both genotypes. Conversely, JP-01811 presented the lowest chlorophyll and proline contents as well as enzymatic antioxidant activities, resulting in the poorest growth and seed yield.

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Section: Survival Percentagementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Assessing the Response of Diverse Sesame Genotypes to Waterlogging Durations at Different Plant Growth Stages

Habibullah

Sarkar

Islam

et al. 2021

Plants

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“…Collectively, there are abundant salinity-resistant mechanisms related to plant physiology and molecular biology. To support the plant to defend against the stress influences and enhance its efficiency in this regard, external aids such as eco-friendly biostimulants and antioxidants are used [18,19].…”

Section: Introductionmentioning

confidence: 99%

“…Biostimulants have been used to enhance plants' tolerance to numerous stresses, including salinity [18][19][20][21][22][23][24]. All previously used biostimulants, including honey bee (HB), led to an increase in plant antioxidant defense systems (e.g., enzymes, low molecular weight antioxidants, and osmolytes) and promoted all components related to plant morphology, biochemistry including ionic and hormonal balances, and molecular biology [13,19,[22][23][24]. The promoting mechanisms of biostimulants for stressed plants are not adequately known because of the heterogeneous nature of the different components of the biostimulator.…”

Section: Introductionmentioning

confidence: 99%

“…Lately, biostimulants have been used exceedingly because of their high antioxidant capacity to eliminate or attenuate the harmful influences of stressors, including salinity. It rebalances nutrient ions and phytohormones and reinforces plants' tolerance to stress to restore plant development, biochemistry, physiology, and molecular biology [18][19][20][21][22][23].…”

Section: Introductionmentioning

confidence: 99%

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Natural Biostimulant Attenuates Salinity Stress Effects in Chili Pepper by Remodeling Antioxidant, Ion, and Phytohormone Balances, and Augments Gene Expression

Abou-Sreea

Azzam

Al-Taweel

et al. 2021

Plants

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A biostimulant is any microorganism or substance used to enhance the efficiency of nutrition, tolerance to abiotic stress and/or quality traits of crops, depending on its contents from nutrients. Plant biostimulants like honey bee (HB) and silymarin (Sm) are a strategic trend for managing stressed crops by promoting nutritional and hormonal balance, regulating osmotic protectors, antioxidants, and genetic potential, reflecting plant growth and productivity. We applied diluted honey bee (HB) and silymarin-enriched honey bee (HB- Sm) as foliar nourishment to investigate their improving influences on growth, yield, nutritional and hormonal balance, various osmoprotectant levels, different components of antioxidant system, and genetic potential of chili pepper plants grown under NaCl-salinity stress (10 dS m‒1). HB significantly promoted the examined attributes and HB-Sm conferred optimal values, including growth, productivity, K+/Na+ ratio, capsaicin, and Sm contents. The antioxidative defense components were significantly better than those obtained with HB alone. Conversely, levels of oxidative stress markers (superoxide ions and hydrogen peroxide) and parameters related to membrane damage (malondialdehyde level, stability index, ionic leakage, Na+, and Cl− contents) were significantly reduced. HB-Sm significantly affects inactive gene expression, as a natural biostimulator silencing active gene expression. SCoT primers were used as proof in salt-treated or untreated chili pepper plants. There were 41 cDNA amplicons selected by SCoT-primers. Twenty of them were EcDNA amplicons (cDNA-amplicons that enhanced their genes by one or more treatments) representing 49% of all cDNA amplicons, whereas 7 amplicons for ScDNA (whose genes were silenced in one or more treatments) represented 17%, and 14 McDNA (monomorphic cDNA-amplicons with control) amplicons were represented by 34% from all cDNA amplicons. This indicates the high effect of BH-Sm treatments in expression enhancement of some inactive genes and their silenced effect for expression of some active genes, also confirming that cDNA-SCoT markers succeeded in detection of variable gene expression patterns between the untreated and treated plants. In conclusion, HB-Sm as a natural multi-biostimulator can attenuate salt stress effects in chili pepper plants by remodeling the antioxidant defense system and ameliorating plant productivity.

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Role of Plant Extracts and Biostimulant in Mitigating Plant Drought and Salinity Stress

Elsayed,

Sabra,

Omer

2023

Climate-Resilient Agriculture, Vol 2

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Application of biostimulants promotes growth and productivity by fortifying the antioxidant machinery and suppressing oxidative stress in faba bean under various abiotic stresses

Cited by 51 publications

References 92 publications

Assessing the Response of Diverse Sesame Genotypes to Waterlogging Durations at Different Plant Growth Stages

Assessing the Response of Diverse Sesame Genotypes to Waterlogging Durations at Different Plant Growth Stages

Natural Biostimulant Attenuates Salinity Stress Effects in Chili Pepper by Remodeling Antioxidant, Ion, and Phytohormone Balances, and Augments Gene Expression

Role of Plant Extracts and Biostimulant in Mitigating Plant Drought and Salinity Stress

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