Analisis Isozim dan Patogenisitas Isolat Cladosporium spp. Terhadap Karat Putih Pada Krisan (Isozyme Analysis and Pathogenicity of Cladosporium spp. Isolate Against White Rust on Chrysanthemum)

E. S. Yusuf, I. Djatnika
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Abstract

Cladosporium spp. merupakan mikoparasit potensial untuk mengendalikan beberapa jenis cendawan karat. Penelitian bertujuan untuk mengetahui patogenisitas 10 isolat Cladosporium spp. yang ditemukan di daerah sentra krisan (Kabupaten Cianjur dan Bandung Barat) terhadap penyakit karat putih pada krisan dan hubungan kekerabatannya antara isolat Cladosporium spp. Percobaan dilakukan pada bulan April hingga Agustus 2014 di Laboratorium Mikologi Balai Penelitian Tanaman Hias (Balithi) dan Laboratorium Patologi dan Silvikultur, Fakultas Kehutanan, Institut Pertanian Bogor. Pada percobaan ini dilakukan uji patogenisitas 10 isolat Cladosporium spp. asal Kabupaten Cianjur dan Bandung Barat terhadap pustul karat pada daun krisan di laboratorium. Untuk menelusuri hubungan genetik antarisolat dilakukan analisis isozim secara elektroforesis dengan menggunakan enzim esterase (EST), acid phospatase (ACP), dan peroksidase (PER). Hasil percobaan menunjukkan sembilan isolat Cladosporoium spp. efektif memparasit pustul karat dengan efektivitas lebih dari 50%. Hasil analisis isozim menunjukkan terdapat dua kelompok Cladosporium spp. yang memiliki koefisien kemiripan 67%.KeywordsCladosporium spp.; Isozim; Mikoparasit; PatogenisitasAbstractCladosporium spp. is a potential mycoparasite for controlling some rust fungi. The aim of the research was to obtain the effectiveness of 10 Cladosporium spp. isolates was found in chrysanthemum central area (Cianjur and West Bandung District) and genetic relationship among the isolats. The research carried on April to Agustus 2014  in Micology Laboratory Indonesian Ornamental Crop Institute and Pathology and Silviculture Laboratory, Faculty of Forestry, Bogor Agricultural University. Pathogenicity of the 10 fungus isolate was tested against rust pustules on chrysanthemum leaves and genetic relationship between isolates was analyzed by electrophoresis isozyme using EST, ACP, and PER enzyme. The results showed that nine of Cladosporoium spp. isolates were effective parasited rust pustule with more than 50% effectiveness. The cluster analysis based on isozyme analysis showed that Cladosporium spp. isolate have two  distinc groups with 67% similarity coefficient.
菊花白锈病枝孢菌分离株同工酶及致病性分析
Cladosporium spp.是一种可能控制某些克拉属真菌的寄生虫。研究旨在探讨patogenisitas 10隔离地区发现的mts Cladosporium。西方菊花sentra (Cianjur县和万隆)克拉的白色菊花和疾病之间的亲属关系隔离Cladosporium mts。2014年4月至8月在实验室做实验大厅真菌学观赏植物(Balithi)和病理学实验室研究着矛盾,茂物林业研究所,农业学院。在这个实验中,测试了十种分离性的clado孢子属。为了追溯遗传关系,神仙使用esterase酶(es)、氢氧化酶(ACP)和过氧化酶(PER)进行电前体分析。实验结果显示,这是一种九种异戊二烯聚氰胺,其功效超过50%。同位素分析结果显示,这两组Cladosporium spp具有67%的相似性。mts KeywordsCladosporium。;Isozim;Mikoparasit;病理学家对己菌spp的研究是一种潜在的mycoparastic用于控制某些锈斑真菌。研究的目标是确定十克拉多斯波拉提斯在chrysanthemum central area (Cianjur和West万隆地区)和基因关系与孤立之间的结果。2014年4月至8月,在印度尼西亚的Ornamental Crop研究所和病学研究所,茂物农业大学,茂物农业大学,主题研究。第十种真菌的异化性被测试对菊花叶的锈迹性和异化之间的基因关系的侵蚀使用EST, ACP,和enzyme分析。结果表明,其中九种是有效的寄生虫性锈病,其影响超过50%。基于isozyme分析的集群分析表明,Cladosporium spp. isolate有两种不同的生长,海拔67%相似。
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