The Application of Organic Fertilizer and Arbuscular Mycorrhiza Fungi Modifies the Physiological and Biochemical Responses of Stevia Plants under Salt Stress

IF 1.1 4区生物学 Q3 PLANT SCIENCES Russian Journal of Plant Physiology Pub Date : 2024-07-02 DOI:10.1134/s102144372460243x

I. Janah, A. Elhasnaoui, M. Anli, O. Raho, M. Mobaligh, K. Lamnai, S. Aissam, A. Meddich

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Abstract

The utilization of saline water for irrigating plants in arid and semi-arid regions has become imperative because of the scarcity of water resources. Nevertheless, under salt stress conditions, plants undergo a multitude of variation, which result in delayed growth and adversely affect the plant metabolism. Adopting appropriate and sustainable strategies such as using bio-organic fertilizers from animal and plant waste or integrating microorganisms (symbiotic fungi), can improve plant resilience against salt stress. The purpose of this study was to elucidate the impact of arbuscular mycorrhizal fungus (AMF) Rhizophagus irregularis alone and/or combined with compost on growth, nutrient uptake, antioxidant activities, and photosynthesis-related performance of Stevia rebaudiana Bertoni under salt stress conditions. Salt stress negatively affected all studied parameters. However, the application of R. irregulare strain in a substrate amended with 5% compost is more effective in enhancing salt stress tolerance in stevia plants compared to the compost and AMF strain applied separately. The synergistic effect of the co-application of these two biofertilizers under salt stress resulted in increased stomatal conductance (276%), chlorophyll fluorescence (38%), antioxidant enzyme activities, and the uptake of K⁺ (78%), Ca²⁺ (117%), and P (149%). In conclusion, the application of compost combined with AMF may be a promising sustainable strategy for improving salt stress resistance in stevia.

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施用有机肥和丛枝菌根真菌可改变甜叶菊植物在盐胁迫下的生理生化反应

摘要由于水资源匮乏，利用盐水灌溉干旱和半干旱地区的植物已成为当务之急。然而，在盐胁迫条件下，植物会发生多种变化，导致生长延迟，并对植物的新陈代谢产生不利影响。采用适当的可持续策略，如使用动植物废弃物制成的生物有机肥料或结合微生物（共生真菌），可以提高植物对盐胁迫的适应能力。本研究的目的是阐明在盐胁迫条件下，单独使用和/或结合堆肥使用丛枝菌根真菌（AMF）对甜叶菊（Stevia rebaudiana Bertoni）的生长、养分吸收、抗氧化活性和光合作用相关性能的影响。盐胁迫对所有研究参数都有负面影响。然而，与单独施用堆肥和 AMF 菌株相比，在添加了 5% 堆肥的基质中施用 R. irregulare 菌株能更有效地提高甜叶菊植物对盐胁迫的耐受性。在盐胁迫下同时施用这两种生物肥料会产生协同效应，使气孔导度（276%）、叶绿素荧光（38%）、抗氧化酶活性以及 K+（78%）、Ca2+（117%）和 P（149%）的吸收量增加。总之，堆肥与 AMF 的结合应用可能是提高甜叶菊抗盐胁迫能力的一种有前途的可持续策略。

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来源期刊

Russian Journal of Plant Physiology 生物-植物科学

CiteScore

4.00

自引率

14.30%

发文量

107

审稿时长

6 months

期刊介绍： Russian Journal of Plant Physiology is a leading journal in phytophysiology. It embraces the full spectrum of plant physiology and brings together the related aspects of biophysics, biochemistry, cytology, anatomy, genetics, etc. The journal publishes experimental and theoretical articles, reviews, short communications, and descriptions of new methods. Some issues cover special problems of plant physiology, thus presenting collections of articles and providing information in rapidly growing fields. The editorial board is highly interested in publishing research from all countries and accepts manuscripts in English.