Isolating and Identifying the Species of Cephaleuros on Rambutan Based on Its Morphology and Molecular Analysis

Authors:Davis Aaron, Kaur Casey


Algae leaf spot is considered a minor disease in Thailand, so little research has been done on the biology, ecology, distribution, taxonomy and pathogenicity of Cephaleuros. Therefore, the purpose of this study was to isolate and identify the genus Cephaleuros based on the morphological and molecular analysis of rambutan. In August 2014, 30 rambutan leaf spot samples (n = 30) were collected. Algae were removed from the fresh leaves and observed under a stereo microscope. In this study, the morphological and molecular characteristics of organisms isolated from rambutan leaf spots were characterized. Algae of the genus Cephalosporin have been reported to cause disease in many plant species in various habitats. Algae have been found to grow under the stratum corneum of the host. The tissue below the thalamus is necrotic, and there is no necrotic spot in the thalamus. A cross section through thalli indicates that plant tissue necrosis is spreading from thalli to healthy tissue.

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