4.6 Article

Bacterial community diversity, lignocellulose components, and histological changes in composting using agricultural straws for Agaricus bisporus production

Journal

PEERJ
Volume 9, Issue -, Pages -

Publisher

PEERJ INC
DOI: 10.7717/peerj.10452

Keywords

Agaricus bisporus; Agricultural straw; Lignocellulose; Composting; Histological changes; 16S rRNA sequencing; Mushroom yield

Funding

  1. China Agriculture Research System (CARS -20)
  2. Substrate Utilization of Crop Straw [201503137]

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The study found that different agricultural straws exhibited variations in degradation under the same compost conditions, with wheat straw, rice straw, and cotton straw inducing significantly higher mushroom yields than other straws. Genera such as Thermobispora, Thermopolyspora, and Vulgatibacter may play important roles in the degradation of different agricultural straws. Adjusting formulations and compost methods based on different agricultural straws could potentially lead to high-yield mushroom production in the future.
Agricultural straws (AS) may serve as potential base-substances in the production of Agaricus bisporus. Six AS that occur across China were investigated in a two-stage composting experiment; lignocellulose components, AS morphology, and the effects of different AS on mushroom yields from 2015-2017 were examined. In addition, microbial biodiversity and their impact on substrate degradation were studied using 16S gene sequenc based on six different AS on the 3rd (I.F), 6th (I.S), and 10th (I.T) day of Phase I, and Phase II (II). Results showed that the six different AS exhibited differences in the progression of degradation under the same compost condition; the wheat straw, rice straw, and cotton straw induced a significantly higher mushroom yield than did the others (P < 0.05); Thermobispora, Thermopolyspora, and Vulgatibacter genera may play an important role in the different AS degradations. According to our experiments, we can adjust formulations and compost methods to obtain high-yield mushroom compost based on different AS in the future.

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