IDENTIFICATION AND CHARACTERIZATION OF FUNGAL PATHOGEN CAUSING LEAF SPOT IN MULBERRY LEAVES USING SCANNING ELECTRON MICROSCOPE
Harendra Kumar, Yuvana Satya Priya, Mukesh Kumar, Vadamalai Elangovan and *Kumari Sunita
ABSTRACT
Mulberry plants are infected by a variety of diseases. The fungal pathogen causing leaf spot in mulberry leaf was isolated, characterized and identified. The causative agent was identified as Alternaria alternata based on morphological features. The conidia of A. alternata were clavate and formed single chain. The spores consist both longitudinal and horizontal/transverse septa. The conidium tapers into a narrow and rounded protuberance. The conidia were cylindrical while young and became bottle shaped with branched beaks when matured. A maximum numbers of conidia were produced during 5th and 7th days of incubation at 26 ?C – 28 ?C. A. alternata conidium germination inoculation and colonization on the mulberry plant studied on scanning electron microscope the length of conidia was 35.25?m and width 4.94 ?m
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