Oomycetes represent some of the most devastating plant and animal pathogens. Typical examples are Phytophthora infestans, which causes potato and tomato late blight, and Saprolegnia parasitica, responsible for fish diseases. Despite the economical and environmental importance of oomycete diseases, their control is difficult, particularly in the aquaculture industry. Carbohydrate synthases are v...

Abstract Plant immunity is activated upon perception of pathogens and often affects growth when it constitutively active. It still a challenge to balance plant in disease resistance breeding. Here, we demonstrated that soybean ( Glycine max ) polyamine oxidase (GmPAO) confers multiple Phytophthora pathogens, but has no obvious adverse impact on agronomic traits. GmPAO produces H 2 O by oxidizin...

There are approximately 18 million cancer cases have been observed per year worldwide according to Global therapy (GLOBOCAN). Chemotherapy, radiotherapy and surgery mostly used for therapy.

Due to the excessive use of antifungal agents, drug resistance and ecological problems are increasing. Some agents difficult degrade have high toxicity several side effects. In this study, 15 novel tetrahydrogeranyl quaternary ammonium salts (8a–8o) were synthesized from natural compound citral. The structures characterized by Fourier transform infrared, proton nuclear magnetic resonance, carbo...

The relationship between the production of reactive oxygen species and the hypersensitive response (HR) of tobacco (Nicotiana tabacum L. ) toward an incompatible race of the Oomycete Phytophthora parasitica var nicotianae has been investigated. A new assay for superoxide radical (O2-) production based on reduction of the tetrazolium dye sodium,3'-(1-[phenylamino-carbonyl]-3, 4-tetrazolium)-bis(...

China isolates of Phytophthora parasitica var. Nicotianae have been divided into three large pathogenic groups (PGS) (Hv(A), Iv(B), Wv(C)) which came from Yunnan, Shandong and Liaoning. These three districts belong to main tobacco regions in China: 15 isolates derived from Yunnan of the southwest, 13 isolates from Shandong of the east and 20 isolates from Liaoning of the northeast. PGS were det...

A low-molecular weight protein, termed oligandrin, was purified to homogeneity from the culture filtrate of the mycoparasitic fungus Pythium oligandrum. When applied to decapitated tomato (Lycopersicon esculentum Mill. var. Prisca) plants, this protein displayed the ability to induce plant defense reactions that contributed to restrict stem cell invasion by the pathogenic fungus Phytophthora pa...