Application of enzymatic hydrolysate of Ulva clathrata as biostimulant improved physiological and metabolic adaptation to salt-alkaline stress in wheat

Li, Feiyu; Wu, Zhihua; Zuo, Siqi; Fan, Liang Jen; Wei, Zhengpeng; Ma, Li; Sun, Weidong; Du, Changwen; Wang, Peng

doi:10.1007/s10811-022-02684-4

Cited by 8 publications

(2 citation statements)

References 46 publications

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“…Abiotic stresses such as salt and alkali lead to reactive oxygen accumulation and plant damage ( Lu et al, 2022 ; Ren et al, 2022 ). The inoculation of PGPR improves the expression and activity of reactive oxygen species-scavenging enzymes and proline production, which balances osmotic pressure, but MDA produced from membrane oxidation decreases in wheat under saline and/or alkaline stress ( Haroon et al, 2022 ; Li F. et al, 2022 ). Similarly, this study showed that treatment with silicon or Enterobacter sp.…”

Section: Discussionmentioning

confidence: 99%

Synergic mitigation of saline-alkaline stress in wheat plant by silicon and Enterobacter sp. FN0603

Liang

Wang

et al. 2023

Front. Microbiol.

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Although microorganisms and silicon are well documented as factors that mitigate salt stress, their effect mitigating saline-alkaline stress in plants remains unknown. In this study, wheat plant seeds were treated with silicon, Enterobacter sp. FN0603 alone and in combination of both. Wheat seeds were soaked in silicon and bacterial solutions and sown in pots containing artificial saline-alkaline soils to compare the effects among all treatments. The results showed that the treatments with silicon and FN0603 alone significantly changed plant morphology, enhanced the rhizosphere soil nutrient content and enzyme activities, improved some important antioxidant enzyme activities (e.g., superoxide dismutase) and the contents of small molecules (e.g., proline) that affected osmotic conditions in the top second leaves. However, treatment with silicon and FN0603 in combination significantly further increased these stress tolerance indexes and eventually promoted the plant growth dramatically compared to the treatments with silicon or FN0603 alone (p < 0.01), indicating a synergic plant growth-promoting effect. High relative abundance of strain FN0603 was detected in the treated plants roots, and silicon further improved the colonization of FN0603 in stressed wheat roots. Strain FN0603 particularly when present in combination with silicon changed the root endophytic bacterial and fungal communities rather than the rhizosphere communities. Bipartite network analysis, variation partitioning analysis and structure equation model further showed that strain FN0603 indirectly shaped root endophytic bacterial and fungal communities and improved plant physiology, rhizosphere soil properties and plant growth through significantly and positively directing FN0603-specific biomarkers (p < 0.05). This synergetic effect of silicon and plant growth-promoting microorganism in the mitigation of saline-alkaline stress in plants via shaping root endophyte community may provide a promising approach for sustainable agriculture in saline-alkaline soils.

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Section: Discussionmentioning

confidence: 99%

Synergic mitigation of saline-alkaline stress in wheat plant by silicon and Enterobacter sp. FN0603

Liang

Wang

et al. 2023

Front. Microbiol.

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“…Similarly, biochar combined with daily fertigation in alkaline soil can improve cucumber yield [101]. Similarly, microorganisms are another window of action to mitigate alkalinity damage, as they increase antioxidant enzymes and modify plant gene expression [108], regulate enzyme activity and soil microbial load [27,109], decrease pH [110], and regulate soil ionic balance [111,112], improving nutrient availability [113]. All of these management techniques improve plant productivity and promote better fruit quality by increasing the total soluble solids, acid ratio, sugar, and phenol content [42,114].…”

Section: Alkalinity Management Strategiesmentioning

confidence: 99%

Underlying Mechanisms of Action to Improve Plant Growth and Fruit Quality in Crops under Alkaline Stress

Pérez-Labrada,

Luis Espinoza-Acosta,

Bárcenas-Santana

et al. 2024

Abiotic Stress in Crop Plants - Ecophysiological Responses and Molecular Approaches

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The high content of carbonates (CO32−), bicarbonate (HCO3−), and high pH (>7.5) causes environmental pressure and alkaline stress, impairs plant growth and development, and limits fruit quality by causing osmotic alterations and hindering nutrient absorption. Because of alkaline stress, plants are in an oxidative environment that alters their metabolic processes, impairing their growth, development, and fruit quality. In response to this situation, plants use several mechanisms to cope, including the alteration of osmolytes, induction of transcription factors, signal transduction, hormone synthesis, alteration of the antioxidant system, and differential gene expression. Current knowledge and understanding of the underlying mechanisms that promote alkalinity tolerance in crops may lead to new production strategies to improve crop quality under these conditions, while ensuring food security.

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Examining Adaptive Responses of Foeniculum vulgare to Elevated Sodium and Chloride Stress in the Root Zone

Akhter,

Nafees,

Noman

et al. 2024

J Soil Sci Plant Nutr

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Application of enzymatic hydrolysate of Ulva clathrata as biostimulant improved physiological and metabolic adaptation to salt-alkaline stress in wheat

Cited by 8 publications

References 46 publications

Synergic mitigation of saline-alkaline stress in wheat plant by silicon and Enterobacter sp. FN0603

Synergic mitigation of saline-alkaline stress in wheat plant by silicon and Enterobacter sp. FN0603

Underlying Mechanisms of Action to Improve Plant Growth and Fruit Quality in Crops under Alkaline Stress

Examining Adaptive Responses of Foeniculum vulgare to Elevated Sodium and Chloride Stress in the Root Zone

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