Mycorrhizal Synthesis and Physiological Responses of Entoloma clypeatum and Three Rosaceae Fruit Trees
Chen Hao, Chunfeng Mu, Xinyan Yu, Xiaoran Chen, Mengmeng Zhu, Jianrui Wang*, Yu Liu*
School of Agriculture, Ludong University, Yantai, 264000, China
* Corresponding Author: Jianrui Wang. Email: 
; Yu Liu. Email: 
Phyton-International Journal of Experimental Botany https://doi.org/10.32604/phyton.2024.056114
Received 15 July 2024; Accepted 24 September 2024; Published online 12 December 2024
Abstract
Entoloma clypeatum, a kind of edible ectomycorrhizal fungus, can be usually symbiotic with Rosaceae fruit trees. Fruit trees have become an important part of China’s agriculture. The present work focused on exploring how
E. clypeatum affected symbiotic Rosaceae plants and establishing a symbiotic culture with
Malus robusta, Pyrus betulifolia and
Prunus armeniaca rootstocks. The results showed that
E. clypeatum and three Rosaceae plants can generate cylindrical or clavate mycorrhizae. The inoculation treatment had different degrees of positive effects on the three plants. Relative to the non-inoculated group, biomass in symbiotic plants increased (32.8%–191.1%), and photosynthesis enhanced. In the level of plant endogenous hormones, the concentration of zeatin, auxin and gibberellin increased (45.45%–228.95%), and the concentration of abscisic acid decreased (35.99%–76.21%). In roots and leaves of plants, the activities of antioxidant enzymes increased (19.0%–249.8%), soluble sugar, soluble protein and free proline concentrations increased (24.9%–373.3%), and the concentration of malondialdehyde decreased (43.6%–79.1%). According to these findings,
E. clypeatum stimulated the growth of
M. robusta,
P. betulifolia and
P. armeniaca and improved stress tolerance and adaptability. Our study provides a basis for developing and applying
E. clypeatum, facilitates fruit tree industry development and serves as a resource for studying ectomycorrhizal fungi.
Keywords
Ectomycorrhizal fungi; mycorrhizal morphology; antioxidant enzymes; osmotic regulating substances; photosynthesis; plant hormones
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