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All Journal Jurnal Fitopatologi Indonesia Vegetalika Jurnal Ilmu Pertanian AL KAUNIYAH Indonesian Journal of Biotechnology Jurnal Perlindungan Tanaman Indonesia JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA JPT : JURNAL PROTEKSI TANAMAN (JOURNAL OF PLANT PROTECTION) jurnal Ilmu Pertanian (Agricultural Science)
Siti Subandiyah
Cultivation Of Agriculture Department, Faculity Of Agriculture, Gadjah Mada University
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Environmental Science Immunology & microbiology Materials Science & Nanotechnology Medicine & Pharmacology

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Metabarcoding analysis identifies the phyllosphere fungal communities associated with a newly emerged leaf fall disease in rubber plants in Indonesia Setyawan, Budi; Wibowo, Arif; Pujade-Renaud, Valérie; Subandiyah, Siti
Indonesian Journal of Biotechnology Vol 31, No 2 (2026)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ijbiotech.115802

Abstract

Leaf fall disease of Hevea brasiliensis in Indonesia and Southeast Asia is an emerging threat to rubber production. While tentatively associated with Pestalotiopsis, Colletotrichum, and Neopestalotiopsis species, the disease etiology remains poorly characterized. This study aimed to identify the fungal community associated with symptomatic rubber leaves using culture-independent ITS amplicon sequencing. Leaf samples representing three symptom severity levels were collected from Central Java and South Sumatra. Fungal community composition analysis revealed that geographic origin, rather than symptom severity, was the primary driver of community clustering. Phyllosticta and Colletotrichum were consistently dominant across all samples, with Phyllosticta displaying notably higher relative abundance. Phyllosticta was identified as a newly reported pathogen of H. brasiliensis. Minor proportions of Pestalotiopsis, Neopestalotiopsis, Corynespora, and Pestalotia were also detected. Multigene phylogenetic analysis (ITS and β-tubulin) revealed three major clades corresponding to Neopestalotiopsis, Pestalotiopsis, and Colletotrichum. Pathogenicity assays confirmed that representative isolates reproduced field symptoms. This first metagenomic assessment of the phyllosphere mycobiota in diseased rubber leaves identifies Phyllosticta as a critical yet overlooked component of the leaf fall disease complex, providing insights into fungal ecology and pathogenic interactions underlying this emerging production threat.
Co-Authors A. C. Hayward Abd. Rasyid Syamsuri Ani Widiastuti, Ani Aries Bagus Sasongko, Aries Bagus Arif Wibowo Arif Wibowo BUDI SETIADI DARYONO Budi Setyawan Christanti Sumardiyono Damanik, Nina Septania Donny Widianto Donovan, Nerida Eka Tarwaca Susila Putra Endang Sulistyaningsih Harper, Stephen Ilma, Hurin Nabila Aghnia JAKA WIDADA Khurshid, Tahir Kuwat Triyana Lestiyani, Ayu Liliek Sulistyowati M. Fegan Margo Sulistio McCann, Honour C. Mo, Jianhua Nur Edy Nurviani Nurviani Peter Taylor Prakoso, Ady Bayu Pratiwi, Annisa Hasta Pujade-Renaud, Valérie Ramot Christian Santika, Islaminati Anna Saraswati, Vivian Thea Sri Sulandari Sri Widyaningsih Susamto Somowiyarjo Syafitri, Luthfiana Mifta Tri Joko Tri Joko Triastuti Rahayu Triwibowo Yuwono Utik Windari Wayan T. Artama Werdiningtyas, Cyrilla Kinanti Yekti Asih Purwestri Yenny Sariasih