处理松材线虫病病死松树伐桩木腐菌的筛选

Screening of Wood-rotting Fungi to Treat Stumps of Dead Pine Trees Caused by PWN(Bursaphelenchus xylophilus)

测试了木腐菌对松材线虫繁殖的影响以及对马尾松木块和松材线虫病病死树伐桩的分解能力,结果表明,供试菌株除裂褶菌菌株外,其他菌株都能抑制松材线虫的繁殖,其中松材线虫在松生拟层孔菌菌株W10、W11,硫磺菌菌株5452、6600,粗皮侧耳菌株6221,虎掌菌菌株6320,茯苓菌株6284,灵芝菌株6501菌落上完全不能存活。对马尾松木块的分解试验结果表明,松生拟层孔菌菌株W10、W11、硫磺菌菌株6600、杂色云芝菌株6923、茯苓菌株6284对马尾松木块具有较强的分解能力。田间接种硫磺菌菌株6600、杂色云芝菌株6923、松生拟层孔菌菌株W11、茯苓菌株6284和粗皮侧耳菌株6221处理松材线虫病病死树伐桩70 d后,硫磺菌菌株6600和杂色云芝菌株6923表现出对松材线虫病病死树伐桩较强的分解能力,这2个菌株可作为今后利用木腐菌处理松材线虫病病死树伐桩的潜力菌株。

In this study, the wood-rotting fungi were chosen to evaluate their relation with Bursaphelenehus xylophilus （PWN） , the ability to decompose the wood specimens of Pinus massoniartct and the stumps of dead pine trees caused by PWN. the results showed that all the wood-rotting fungi tested had certain nematicidal effects on PWN except Schizophyllum commune. Among the wood-rotting fungi, PWN could not survive on the strains of W10, W11 （ Fomitopsis pinicola ）, 5452, 6600 （ Laetiporus sulphureus ）, 6221 （ Pleurotus ostreatus ）, 6320 （ Tremellodon gelatinosum）, 6284 （ Poria cocos） , 6501 （ Ganoderma lucidum） absolutely. The results of the experiment indicated that the strains of W10, W11 （ Fomitopsis pinicola ）, 6600 （ Laetiporus sulphureus ）, 6923 （ Coriolus versicolor） and 6284 （Poria cocos） had higher ability to decompose Pinus massoniartct specimens. After inoculating the strains of 6600,6923, W11,6284,6221 to treat stumps for 70 d. The strains of 6600 and 6923 showed higher ability to decompose the stumps. The strains could be used to treat stumps of dead wood caused by PWN in the future.