Preliminary Research on Conditions of Toxins Produced by Pestalotiopsis photiniae
- VernacularTitle:石楠拟盘多毛孢毒素产生条件初探
- Author:
Ji-Zhi JIANG
;
Xiang-Bin LI
;
Chun-Shuang GUI
;
Yan WANG
;
- Publication Type:Journal Article
- Keywords:
Pestalotiopsis photiniae, Toxin, Culture condition
- From:
Microbiology
1992;0(01):-
- CountryChina
- Language:Chinese
-
Abstract:
Pestalotiopsis photiniae is one of the predominant pathogens of strawberry root rot disease. Based on preliminary research, it was proved that crude toxins were main pathogenic substances of the pathogen. For further investigation and utilization of toxins produced by this fungus, conditions of producing toxins were analyzed with the leaf disk method in this experiment. The result showed that pH values, cultural time, vibration, and tested temperatures obviously affected the production of toxins, except for light treatment. The most suitable culture conditions for the toxin production were pH 6.2, 25?C, darkness and stillness, for 5 d～7 d. Besides, it was discovered that crude toxins could significantly inhibit seed germination and elongation growth of roots or shoots for maize, rye and mung bean.
