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Investigation of Plant Interactions Across Common Mycorrhizal Networks Using Rotated Cores
Published on: March 26, 2019
Enhanced corn straw decomposition and wheat growth promotion by filamentous consortium comprising Trichoderma reesei,
Linru Fan1,2, Mengjiao Wang1,2, Qing Zeng1,2
1College of Life Sciences, Northwest A&F University, 22 Xinong Road, Yangling, 712100 Shaanxi China.
Abstract:
The effects of Trichoderma reesei, Aspergillus niger, and Neurospora crassa on corn straw decomposition and wheat growth were evaluated in this study. Hydroponic experiments showed that the dual combination TA (T. reesei + A. niger) and the triple combination TAN (TA + N. crassa) increased cellulase activity and wheat germination ratios (TA: 1.5 ± 0.06; TAN: 1.4 ± 0.17). Pot experiments confirmed that both TA and TAN enhanced germination (TA: 1.77 ± 0.39; TAN: 1.83 ± 0.34), as well as the height, fresh weight and dry weight of wheat seedlings. The optimal amount of straw addition was 4500 kg/ha. Analysis of soil components during the decomposition process indicated that the addition of TA and TAN enhanced the activities of cellulase, sucrase, urease and catalase, while increasing soil organic matter content. Metagenomic analysis after TA addition indicated shifts in microbial community: at the phylum level, Proteobacteria and Acidobacteria increased, while Actinobacteria decreased; at the genus level, lignocellulose degraders (Pseudoxanthomonas) and nitrifiers (Nitrospira) were enriched, whereas oligotrophic Actinobacteria (Nocardioides) and aromatic degraders (Devosia) declined. This microbiome restructuring accelerated straw decomposition and improved soil nutrient transformation. Overall, TA and TAN consortia showed synergistic performance, supporting their potential application in straw return practices.
Supplementary Information:
The online version contains supplementary material available at https://doi.org/10.1007/s13205-026-05057-7.
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