Pochonia chlamydosporia promotes the growth of tomato and lettuce plants

ABSTRACT The fungus Pochonia chlamydosporia is one of the most studied biological agents used to control plant-parasitic nematodes. This study found that the isolates Pc-3, Pc-10 and Pc-19 of this fungus promote the growth of tomato and lettuce seedlings. The isolate Pc-19 colonized the rhizoplane of tomato seedlings in only 15 days and produced a large quantity of chlamydospores. This isolate was able to use cellulose as a carbon source, in addition to glucose and sucrose. Scanning electron microscopy (SEM) revealed that hyphae of the P. chlamydosporia isolate Pc-10 penetrated the epidermal cells of the tomato roots. These three P. chlamydosporia isolates promote the growth of tomato and lettuce.

摘要 厚垣孢普可尼亚菌（Pochonia chlamydosporia）是当前研究最为广泛的植物寄生线虫生防真菌之一。本研究发现，该菌的Pc-3、Pc-10及Pc-19菌株可促进番茄与生菜幼苗的生长。其中菌株Pc-19仅需15天即可定殖番茄幼苗根面，并产生大量厚垣孢子；除葡萄糖、蔗糖外，该菌株还可利用纤维素作为碳源。扫描电子显微镜（SEM）观察显示，P. chlamydosporia菌株Pc-10的菌丝可侵入番茄根系表皮细胞。综上，上述3株厚垣孢普可尼亚菌均可促进番茄与生菜的生长。