@article{Ibrahim_Hidayat_widodo_2017, place={Bogor (ID)}, title={Keragaman Morfologi, Genetika, dan Patogenisitas Colletotrichum acutatum PenyebabAntraknosa Cabai di Jawa dan Sumatera}, volume={13}, url={https://journal.ipb.ac.id/index.php/jfiti/article/view/16359}, DOI={10.14692/jfi.13.1.9}, abstractNote={<em>Colletotrichum acutatum </em>is known as the major causal agents of anthracnose disease of chilli pepper in Indonesia. This research was aimed to study genetic variability of <em>C. acutatum </em>in Java and Sumatera based on morphological and molecular characteristics and to evaluate pathogenicity of several isolates<em>. </em>Observation on morphological characteristics involved colour and growth of each colony as well as shape and size of conidia. Molecular identification was performed by DNA amplification using specific primer for <em>C. acutatum</em>, i.e. CaInt2/ITS4 followed by sequencing and nucleotide sequence analysis. Pathogenicity test for each isolate on <em>Capsicum annuum </em>and<em> C. frutescens</em> was conducted in the laboratory using detached chilli. Morphology variability was observed from 40 isolates of <em>C. acutatum. </em>Most of the isolates have white/beige colonies with fusiform conidia of 6.11–9.73 µm in length and 2.24­–2.73 µm in width. Pathogenicity of 3 <em>C. acutatum</em> isolates varies from moderate to high based on lesions size on infected chilli. Sequence analysis of 8 <em>C. acutatum</em&gt; isolates indicated high homology among isolates from Java and Sumatera}, number={1}, journal={Jurnal Fitopatologi Indonesia}, author={Ibrahim, Roy and HidayatSri Hendrastuti and widodo, widodo}, year={2017}, month={May}, pages={9} }