Arbuscular Mycorrhizal Fungi Enhance Tolerance to Drought Stress by Altering the Physiological and Biochemical Characteristics of Sugar Beet

IF 1.8 3区农林科学 Q2 AGRONOMY Sugar Tech Pub Date : 2024-10-08 DOI:10.1007/s12355-024-01500-2

Zeyuan Cui, Rui Chen, Tai Li, Bingchen Zou, Gui Geng, Yao Xu, Piergiorgio Stevanato, Lihua Yu, Vadim N. Nurminsky, Jiahui Liu, Yuguang Wang

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Abstract

Global warming is contributing to an increase in the frequency of extreme climate events, leading to more frequent droughts that pose significant abiotic stressors affecting the growth and yield of sugar beet. To address the detrimental effects of drought stress on sugar beet seedlings, this study simulated a drought environment and examined the impact of arbuscular mycorrhizal fungi (AMF) symbiosis on seedling growth. The findings revealed that AMF inoculation under drought conditions enhanced the photosynthesis rate and increased the content of photosynthetic pigments in the leaves of sugar beet. Additionally, it effectively mitigated cell membrane damage in the seedlings, elevated the levels of osmoregulatory substances, and enhanced antioxidant enzyme activities in both leaves and roots. The inoculation of AMF regulates the physiological processes associated with sugar beet growth, alleviates the adverse effects of drought stress, and promotes seedling development. Consequently, AMF can be regarded as a valuable bioregulator in sugar beet cultivation under drought conditions, providing significant practical benefits for improving sugar beet yield.

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丛枝菌根真菌通过改变甜菜的生理生化特性增强其对干旱胁迫的耐受性

全球变暖导致极端气候事件发生的频率增加，从而导致干旱更加频繁，对甜菜的生长和产量造成严重的非生物胁迫。为了解决干旱胁迫对甜菜幼苗的不利影响，本研究模拟了干旱环境，并考察了丛枝菌根真菌（AMF）共生对幼苗生长的影响。研究结果表明，在干旱条件下接种AMF能提高甜菜叶片的光合速率，增加光合色素的含量。此外，它还能有效减轻幼苗的细胞膜损伤，提高渗透调节物质的水平，增强叶片和根部的抗氧化酶活性。接种 AMF 可以调节甜菜生长的相关生理过程，减轻干旱胁迫的不利影响，促进幼苗发育。因此，在干旱条件下种植甜菜时，AMF 可被视为一种重要的生物调节剂，为提高甜菜产量带来显著的实际效益。

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来源期刊

Sugar Tech AGRONOMY-

CiteScore

3.90

自引率

21.10%

发文量

145

期刊介绍： The journal Sugar Tech is planned with every aim and objectives to provide a high-profile and updated research publications, comments and reviews on the most innovative, original and rigorous development in agriculture technologies for better crop improvement and production of sugar crops (sugarcane, sugar beet, sweet sorghum, Stevia, palm sugar, etc), sugar processing, bioethanol production, bioenergy, value addition and by-products. Inter-disciplinary studies of fundamental problems on the subjects are also given high priority. Thus, in addition to its full length and short papers on original research, the journal also covers regular feature articles, reviews, comments, scientific correspondence, etc.