CHAKCHOUK-MTIBAA Ahlem,CHEFFI Manel,ELLEUCH Lobna,MELLOULI Lotfi,SELLEM Imen,SMAOUI Slim,TRIKI Mohamed Ali
申请号：
TN2018000250
公开号：
TN2018000250A1
申请日:
2018.07.17
申请国别(地区):
TN
年份:
2020
代理人:
摘要：
The invention relates to the application of biological activity upstream of a new Streptomyces actinomycete (tn258) in biological control. The name of the new actinomycete strain is tn258, which is responsible for the water corrosion of potato tubercle. Potato or Solanum nigrum tube is a plant variety belonging to Solanaceae, which is 0.4 to 1.4 meters high with green stems.Violet, green and violet The blade consists of a single end blade and three or four pairs of large lateral blades separated by smaller blades. Leaf marginMedium dark green, 8-22 cm long and 5-13 cm wide. Stone length 2 to 6 cm Potato is exposed to a variety of pathogens, namely bacterial diseases.Viruses, nematodes, fungi, and environmental factors. It is estimated that there are about 160 diseases affecting potatoes, of which about 50 are caused by mushrooms. The most serious disease is the decay of water quality, causing great damage until the crops are completely lost. This is a fungal disease caused by various soil fungi belonging to the Pythium class oocytes, especially the ultimate Pythium species. The invention relates to:Selection and identification of morphology and molecular of Streptomyces tn258-l to optimize the production medium of biomolecules secreted by the new Streptomyces tn258-lApplication of bioactive extracts from Streptomyces tn258 in potato water rot in this respectIn vitro studies showed that the bioactive upstream of the new Streptomyces strain tn58 completely inhibited the mycelial development of the final pytophinum plant pathogenic strain and caused the oospores as its resistant form to rupture. In addition, through in vivo studies, we have demonstrated that the biological activity upstream of Streptomyces tn258 can inhibit the growth of fungi in potato tuberculosis infected by Pythium. thereforeThe bioactive upstream of Streptomyces tn258 is a very effective method to control the ultimate Pythium plant pathogen, and this bioactive upstream will provide an effective al
