Experimental research on molluscicidal effect of endophyte JJ18 from Pseudolarix amabilis / 中国中药杂志

<p><b>OBJECTIVE</b>To research molluscicidal effect activity, active components and stable passage of endophyte JJ18 from Pseudolarix amabilis and examine the possibility for practical application.</p><p><b>METHOD</b>Molluscicidal effect test was performed according to the immersion test method suggested by WHO.</p><p><b>RESULT</b>Immersion test with JJ18 broth showed that the active components were extracellular moiety of the broth and that 10% concentration solution could kill nearly 90% snail immersed after 72 h, the salified broth has favourable thermostabily and photostability and showed that JJ18 has stable passage and its active components concentrate in the extract of n-butanol.</p><p><b>CONCLUSION</b>The metabolite of endophyte JJ18 has activity for molluscicidal effect and potential for application.</p>

Study on fast screening antifungus activity of endophytes from Pseudolarix kaempferi / 中国中药杂志

<p><b>OBJECTIVE</b>To screen antifungal activity of endophytes from Pseudolarix kaempferi.</p><p><b>METHOD</b>Endophytes from P. kaempferi were separated. By means of microdilution method, antifungal active endophytes were fast screened by Pyricularia oryzae P-2b model, and activity of endophytes against pathogenic fungus was studied.</p><p><b>RESULT</b>44.8% of endophytes showed activity against P. oryzae P-2b in Pseudolarix kaempferi. Among them JJ314, JJ323 introduced formation of characteristic beads and swellings on the growing hyphae, JJ324 inhibited the conidia germination. They all showed activity against Trichophyton rubrum, Cryptococcus neoformans and Candida albicans.</p><p><b>CONCLUSION</b>Endophytes from P. kaempferi are a potential resource for the development of antifungal agent.</p>