Abstract
(1) Background: Wood decay is a serious issue that results from the presence of wood-destroying fungi and has a great influence on the international wood industry. The utilization of biological control methods offers good prospects for wood preservation. (2) Methods: The plate-screening experiment, the soil block test of the Chinese stand method (GB/T 13942.1), and the characterization of wood blocks were used to achieve biological control of brown rot and white rot. (3) Results: Through isolation, screening, and identification, the antagonistic bacterium Bacillus velezensis Nhw-B72 strain was obtained. In the plate-screening experiment, the inhibition zone diameter of Nhw-B72 for Gloeophyllum trabeum was 1.68 cm and that for Coriolus versicolor was 2.33 cm. After inhibition, the morphology of mycelia was distorted, malformed, and broken. In the soil block test, the average weight loss percentage of wood blocks in the control group was 61.66%. In the treatment group, the average weight loss percentage of the wood blocks with drying was 28.18% and that of the wood blocks without drying was 34.97%. (4) Conclusions: The strain has an obvious antagonistic effect on the wood-destroying fungi and the sterile fermentative liquid can effectively inhibit wood decay. In addition, compared to the drying of wood blocks, the air-drying of blocks after impregnation with the fermentative liquid had a better inhibition effect.
Highlights
Wood is widely used in most aspects of people’s lives
Wood decay occurs gradually under natural conditions, especially in humid environments, and a variety of microorganisms are involved in the process [1,2]
Brown rot is one of the most common types of wood decay. It has a great influence on wood properties in the later stages of wood decay, and causes serious economic loss [6,7]
Summary
Wood is widely used in most aspects of people’s lives. Wood decay occurs gradually under natural conditions, especially in humid environments, and a variety of microorganisms are involved in the process [1,2]. Brown rot and white rot are two principal models in the homobasidiomycetes [3]. Brown and white rot fungi showed completely different decomposition patterns in the wood structure [4,5,6]. Brown rot is one of the most common types of wood decay. It has a great influence on wood properties in the later stages of wood decay, and causes serious economic loss [6,7]
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