Biostimulants for Resilient Agriculture—Improving Plant Tolerance to Abiotic Stress: A Concise Review

Meddich, Abdelilah

doi:10.1007/s10343-022-00784-2

Cited by 27 publications

(13 citation statements)

References 211 publications

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“…Environmental stressors inflict substantial economic losses by diminishing the yield and quality in cereal and oilseed crops [ 21 , 22 , 23 ]. Drought, salinity, and heavy metals (HMs) exposure are among the primary abiotic factors that pose a threat to the growth and development of these crops [ 24 ].…”

Section: Building Resilience: Harnessing Mycorrhizal Symbiosis For En...mentioning

confidence: 99%

Signals and Machinery for Mycorrhizae and Cereal and Oilseed Interactions towards Improved Tolerance to Environmental Stresses

Slimani,

Ait-El-Mokhtar,

Ben-Laouane

et al. 2024

Plants

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In the quest for sustainable agricultural practices, there arises an urgent need for alternative solutions to mineral fertilizers and pesticides, aiming to diminish the environmental footprint of farming. Arbuscular mycorrhizal fungi (AMF) emerge as a promising avenue, bestowing plants with heightened nutrient absorption capabilities while alleviating plant stress. Cereal and oilseed crops benefit from this association in a number of ways, including improved growth fitness, nutrient uptake, and tolerance to environmental stresses. Understanding the molecular mechanisms shaping the impact of AMF on these crops offers encouraging prospects for a more efficient use of these beneficial microorganisms to mitigate climate change-related stressors on plant functioning and productivity. An increased number of studies highlighted the boosting effect of AMF on grain and oil crops’ tolerance to (a)biotic stresses while limited ones investigated the molecular aspects orchestrating the different involved mechanisms. This review gives an extensive overview of the different strategies initiated by mycorrhizal cereal and oilseed plants to manage the deleterious effects of environmental stress. We also discuss the molecular drivers and mechanistic concepts to unveil the molecular machinery triggered by AMF to alleviate the tolerance of these crops to stressors.

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Section: Building Resilience: Harnessing Mycorrhizal Symbiosis For En...mentioning

confidence: 99%

Signals and Machinery for Mycorrhizae and Cereal and Oilseed Interactions towards Improved Tolerance to Environmental Stresses

Slimani,

Ait-El-Mokhtar,

Ben-Laouane

et al. 2024

Plants

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“…The mentioned carbohydrate materials are sulfate compounds, and the method of extraction is a means of reducing the sulfhydryl compound production that minimizes the development of crop plants. The beneficial impacts of introducing seaweed extract to crop plants are associated with stress alleviation because they possess antioxidants that inhibit cell damage as a result of reactive oxygen species (ROS) while undergoing abiotic or biotic stress (Abideen et al, 2022;Meddich, 2022).…”

Section: Seaweed Extractsmentioning

confidence: 99%

“…Biostimulants have been applied in large-scale agriculture for several years, but nowadays, their production has reduced drastically, which makes them unavailable to farmers. Mostly used biostimulants were produced from the beneficial microbes (bacteria and fungi), chitosan, extract of seaweed, protein hydrolysates or amino acids, and organic acids (Kumari et al, 2022;Meddich, 2022), and other forms used were produced from biochar, concentrated enzymes, and microbial extracts. Biostimulants can be modified based on their composition of products and are known except for concentrated enzymes.…”

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confidence: 99%

The potential of biostimulants on soil microbial community: a review

Adedayo,

Babalola

2023

Front. Ind. Microbiol.

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To improve agricultural sustainability, an agriculturally productive system is required to maintain soil fertility and reduce the loss of soil biodiversity. One of the modern technologies employs microbial biostimulants that create abundant agricultural yield with high nutritional values, controlling disadvantages obtained from environmental changes. This review aimed to provide knowledge on the effects of biostimulants on microbial communities’ potential to promote agricultural production. Plant biostimulants are novel materials applied in the farming sector nowadays to improve crop yield and commonly occur in plant seeds and as an alternative to chemical derivative application on crop plants. Microbial biostimulants function as biological inputs to increase crop production and reduce the decomposition of soil. In conclusion, the application of biostimulants necessitates the accomplishment of an absolute choice of beneficial microbes as well as the potential to combat problems that will be encountered later in the agricultural sector.

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“…Variable environmental challenges drive us to seek approaches maintaining crop production. Developing novel biostimulants to help crops combat environmental stimuli has been drawing great attention in resilient agriculture [1]. Biostimulants can trigger crop tolerance, facilitating crop growth and production under stressful conditions.…”

Section: Introductionmentioning

confidence: 99%

Thymol Deploys Multiple Antioxidative Systems to Suppress ROS Accumulation in Chinese Cabbage Seedlings under Saline Stress

Sun,

Chen,

Wang

et al. 2024

Agronomy

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Developing biostimulants is a promising approach for sustainable agriculture under a saline environment. Thymol is a plant-derived compound with a potential antioxidative capacity. However, little is known about whether and how the antioxidative property of thymol plays a role in inducing plant tolerance against abiotic stresses. Here, we find that thymol induces saline tolerance in Chinese cabbage seedlings via enhancing the antioxidative capacity. Treatment with NaCl (100 mM) decreased the seedling fresh weight by 59.9% as compared to a control. Thymol at 20 μM showed the greatest effect on promoting seedling growth under saline stress, with the seedling fresh weight being increased by 71.0% as compared to NaCl treatment. Thymol remarkably decreased the overaccumulation of ROS (hydrogen peroxide and a superoxide radical); cell membrane damage (evaluated by lipid oxidation, membrane integrity, and relative conductivity); and cell death in seedlings under saline stress. Thymol induced three antioxidative systems to lower the ROS level in salt-treated seedlings. First, thymol remarkably activated a set of antioxidative enzymes, such as SOD (superoxide dismutase), APX (ascorbate peroxidase), CAT (catalase), and POD (peroxidase). Second, thymol balanced the cellular redox status by increasing the ratio of AsA/DHA (ascorbic acid/dehydroascorbic acid) and GSH/GSSG (glutathione/oxidized glutathione). Third, thymol significantly enhanced the level-two kinds of antioxidants (total phenol and flavonoid). All of these physiological responses were observed in both the shoots and the roots. In sum, thymol deploys multiple antioxidative systems to help Chinese cabbage seedlings against saline stress. Such findings suggest that thymol has great potential to be developed as a novel biostimulant enhancing crop tolerance against saline stress.

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Biostimulants for Resilient Agriculture—Improving Plant Tolerance to Abiotic Stress: A Concise Review

Cited by 27 publications

References 211 publications

Signals and Machinery for Mycorrhizae and Cereal and Oilseed Interactions towards Improved Tolerance to Environmental Stresses

Signals and Machinery for Mycorrhizae and Cereal and Oilseed Interactions towards Improved Tolerance to Environmental Stresses

The potential of biostimulants on soil microbial community: a review

Thymol Deploys Multiple Antioxidative Systems to Suppress ROS Accumulation in Chinese Cabbage Seedlings under Saline Stress

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