The physiological effects of inoculation with AM fungi under salt stress on wild smooth

doi:10.6048/j.issn.1001-4330.2025.01.016

Abstract

Abstract:

【Objective】 In this study, two different AM fungi were inoculated in wild Bromus inermiss to explore the effects of inoculation with AM fungi under salt stress on the physiology of wild Bromus inermiss. 【Methods】 Under salt stress conditions of 0%, 0.4%, 0.6% and 0.8% NaCl concentration, respectively, whether plants inoculated with AM strains could improve the salt tolerance of wild Bromus inermiss compared with plants not inoculated with AM fungi. 【Results】 Inoculated with AM fungus could increase plant height, stem diameter, dry weight of underground part and dry weight of above ground part of wild Bromus inermiss. Inoculation with AM fungi could significantly improve the activities of antioxidant enzymes (SOD, POD, CAT), and the contents of soluble sugar and proline in wild Bromus inermiss. With the increase of salt concentration, MDA content of inoculated AM fungi was significantly lower than that of uninoculated AM fungi. 【Conclusion】 Inoculation of both AM fungi could promote the growth of wild Bromus inermiss and improve the salt tolerance of wild Bromus inermiss.

Key words: Bromus inermiss; arbuscular mycorrhizal fungi; salt stress; growth; physiology

摘要：

【目的】 研究野生无芒雀麦分别接种2种不同的AM真菌,探究盐胁迫下接种AM真菌对野生无芒雀麦生理的影响。【方法】 在NaCl浓度分别为0%、0.4%、0.6%和0.8%盐胁迫条件下,分析接种AM菌种的植株与不接种AM真菌的野生无芒雀麦的耐盐性。【结果】 接种AM真菌均能提高野生无芒雀麦的株高、茎粗、地下部分干重无地上部分干重;接种AM真菌可显著地提高野生无芒雀麦的抗氧化酶(SOD、POD、CAT)活性,并可提高可溶性糖和脯氨酸的含量;随着盐浓度的上升,接种AM真菌MDA的含量明显小于不接种AM真菌的含量。【结论】 接种2种AM真菌均能促进野生无芒雀麦的生长,提高野生无芒雀麦的耐盐性。

关键词: 野生无芒雀麦, 丛枝菌根真菌, 盐胁迫, 生长, 生理

CLC Number:

S188

GONG Zhaoxing, HAN Pengcheng, LI Zesen, LI Guizhen, WANG Yuxiang, ZHANG Bo. The physiological effects of inoculation with AM fungi under salt stress on wild smooth[J]. Xinjiang Agricultural Sciences, 2025, 62(1): 129-136.

弓兆星, 韩鹏程, 李泽森, 李桂真, 王玉祥, 张博. 盐胁迫下接种AM真菌对野生无芒雀麦生理的影响[J]. 新疆农业科学, 2025, 62(1): 129-136.

Figures/Tables 3

Fig.1 Changes of AM fungi on the growth of Bromus inermiss wheat under salt stress Notes:Lowercase Letters indicate that the salt concentration remains unchanged,Significant changes in the non-vaccinated or vaccinated with no inquiru about the strain;capital letters indicate whether vaccination or strain remains unchanged,significant changes in salt concentration.lowercase shows significantly different at P<0.05,the same as below

Fig.2 Changes of AM fungi on the regulation of osmotic substances in wild Bromus inermiss wheat under salt stress

Fig.3 Changes of AM fungi on the regulation of osmotic substances in Bromus inermisse wheat under salt stress

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