Open AccessSeasonal disease: Foamy bark canker of Citrus maxima in the delta region of Tamil Nadu
Author(s) -
G. Venkatesan,
P. S. Sharavanan
Publication year - 2021
Publication title -
international journal of plant sciences
Language(s) - English
Resource type - Journals
eISSN - 0976-593X
pISSN - 0973-1547
DOI - 10.15740/has/ijps/16.1/7-14
Subject(s) - biology , bark (sound) , botany , canker , citrus canker , hyphomycetes , phytophthora , rhamnaceae , ecology , genetics , bacteria
The Citrus maxima, commonly called pummelo, are a Rutaceae family. The Canker disease recently had an issue on Citrus species in the Delta region of Tamil Nadu. This disease is appeared by foamy oozes from the bark. The infected plant dies slowly in a short period. This study was identified the microorganism causes of foamy disease from bark and infected area. Totally 19 fungi were isolated. Among these 16 fungi were isolated from uninfected bark, 3 fungal species belonging to Ascomycetes, 2 fungal species belonging to Coelomycetes, and 10 species be classed Hyphomycetes and one sterile form, though 11 fungal species were isolated from infected bark foamy ooze, eight Hyphomycetes, one Oomycete, and two sterile forms were isolated. The RPO statistical analysis resulted, the bark fungi have been separated a group fungus from foamy fungi such a few fungi as the Fusarium, Phytophthora, and yeast have isolated in the foam. Also, the Jaccard’s similarity showed 42.105% and dissimilar among to the bark and foamy fungus. The plant was decay, branch dieback and tree death may induce by fungi also that the Canker disease on Citrus may be caused by Phytophthora fungal species.