Synergistic effect of phytohormone-producing ectomycorrhizal fungus Suillus luteus and fertilizer GGR6 on Pinus massoniana growth

IF 2.6 3区生物学 Q2 PLANT SCIENCES

Journal of Plant Interactions Pub Date : 2022-06-01 DOI:10.1080/17429145.2022.2081369

Xueyu Pan, Jinhua Zhang, Zhenwen Xue, Junfeng Liang, Yanliu Chen, Ying Liu

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Abstract

ABSTRACT Suillus luteus is an edible ectomycorrhizal fungus (EMF). The S. luteus strain LS88 secretes many phytohormones, including salicylic acid (SA) and indole-3-carboxylic acid (ICA). LS88 was inoculated to the tree Pinus massoniana and treated with the amino acid fertilizer GGR6. Plant growth parameters, plant enzyme activities, chlorophyll contents, and element contents were analyzed. Our results show that GGR6 may help the development of S. luteus-P. massoniana ectomycorrhiza. Moreover, LS88 and GGR6 synergistically affect P. massoniana growth and element uptake. Phytohormone detection on the roots of LS88-inoculated P. massoniana seedlings showed that LS88 could significantly increase the ICA content within a week. The SA content in the roots in the inoculated group seedlings increased slightly, but the salicylic acid 2-O-β-glucoside (SAG) content decreased. Therefore, we speculate GGR6 may enhance the growth-promoting effect of EMF on plants, and LS88 affects P. massoniana growth through secreting phytohormones.

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产激素外生菌根真菌叶黄松与肥料GGR6对马尾松生长的协同效应

摘要：木犀是一种可食用的外生菌根真菌。木犀菌株LS88分泌许多植物激素，包括水杨酸（SA）和吲哚-3-羧酸（ICA）。将LS88接种到马尾松上，用氨基酸肥料GGR6处理。分析了植物生长参数、植物酶活性、叶绿素含量和元素含量。我们的研究结果表明GGR6可能有助于S.luteus-P的发育。马尾松外生菌根。LS88和GGR6对马尾松生长和元素吸收有协同作用。对接种LS88的马尾松幼苗根部的植物激素检测表明，LS88能在一周内显著提高ICA含量。接种组幼苗根系SA含量略有增加，水杨酸2-O-β-葡萄糖苷（SAG）含量下降。因此，我们推测GGR6可能增强EMF对植物的促生长作用，LS88通过分泌植物激素影响马尾松的生长。

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来源期刊

Journal of Plant Interactions PLANT SCIENCES-

CiteScore

5.30

自引率

6.20%

发文量

审稿时长

>12 weeks

期刊介绍： Journal of Plant Interactions aims to represent a common platform for those scientists interested in publishing and reading research articles in the field of plant interactions and will cover most plant interactions with the surrounding environment.