ArticleFrontiers in plant science2025
Exogenous glomalin boosts kumquat seedling growth by enhancing soil structure and biochemical activity.
Article in Frontiers in plant science, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Introduction: Glomalin-related soil protein (GRSP), a nitrogen-linked glycoprotein secreted by arbuscular mycorrhizal fungi, is recognized for its role in enhancing soil physical and chemical properties and improving ecosystem stability. However, the dose-dependent effects of exogenous easily extractable GRSP (EE-GRSP) on perennial fruit crops such as citrus remain largely unexplored. Methods: The effects of varying strengths (1/4, 1/2, 3/4, and full strength (0.027 mg·mL Results: EE-GRSP significantly promoted kumquat growth and root development, with the 3/4 strength (0.020 mg·mL Discussion: These findings unequivocally establish that exogenous EE-GRSP can effectively promote citrus growth primarily by fostering robust synergistic soil-plant feedbacks through concomitant improvements in both soil physical structure (e.g., aggregate stability) and biochemical processes (e.g., enzyme activity and carbon sequestration). This study advances our mechanistic understanding of glomalin-mediated soil-plant interactions and highlights EE-GRSP as a promising and valuable soil amendment for sustainable citrus cultivation, urging further validation under diverse field conditions.
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