Effect of vuculic acid produced by Nimbya alternantherae on  photosynthesis of alligatorweed leaf Change of cold-resistant substance in dormant soybean cyst nematode, Heterodera glycines Paenibacillus alvei ZJU2011-1 as a biocontrol agent against corm rot of saffron caused by Fusarium oxysporum Changes of reactive oxygen species and antioxidative enzymes during the infection of Nimbya alternantherae strain SF-193 in leaf of Alternanthera philoxeroides Preparation and regeneration of protoplasts for alligator weed pathogen Nimbya alternantherae