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All Journal Jurnal Fitopatologi Indonesia Vegetalika Jurnal Ilmu Pertanian BIOTROPIA - The Southeast Asian Journal of Tropical Biology 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 Veterinary

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Orchid‐associated endophytic Bacillus mediates Fusarium suppression and promotes in vitro regeneration of banana plantlets via culture supernatant Sasongko, Aries Bagus; Purwestri, Yekti Asih; Daryono, Budi Setiadi; Subandiyah, Siti
Indonesian Journal of Biotechnology Vol 30, No 4 (2025)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ijbiotech.111727

Abstract

The application of Fusarium‐antagonistic endophytic bacteria with plant growth‐promoting traits offers an effective method to enhance the success of banana plantlet tissue culture while combating Fusarium wilt disease caused by Fusarium oxysporum f.sp. cubense Tropical Race 4 (FocTR4) (VCG 01213). This study evaluates the endophytic bacterium AP3311, isolated from healthy banana roots in direct association with orchid roots. AP3311 exhibited strong antagonism toward FocTR4, hyphal colonization ability, and multiple growth‐promoting activities, including phosphate solubilization, nitrogen fixation and auxin production. 16S rRNA gene sequencing identified that AP3311 belongs to the genus Bacillus, while metabarcoding analysis revealed that Bacillus species dominate the root microbiomes of both bananas and orchids. The bacterial supernatants stimulated root development and leaf growth in vitro. Metabolomic profiling indicated that antimicrobial compounds, together with plant growth regulators, promoted both root and shoot growth. Overall, the research demonstrates that Bacillus sp. AP3311 and its supernatants are valuable components in banana tissue culture, providing the dual benefits of plant growth promotion and effective disease control.
Distribution of Diaphorina citri, a citrus huanglongbing vector in Indonesia and new locality records Setyaningrum, Haris; Martono, Edhi; Mo, Jianhua; Subandiyah, Siti; Joko, Tri; Soffan, Alan
Jurnal Hama dan Penyakit Tumbuhan Tropika Vol. 26 No. 1 (2026): MARCH, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA: JOURNAL OF TROPICAL PLANT PE
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jhptt.126112-135

Abstract

The Asiatic citrus psyllid (Diaphorina citri) is the primary vector of the destructive citrus disease huanglongbing (HLB), posing a significant threat to citrus production in Indonesia. Systematic surveys of D. citri are essential for identifying areas at high risk of HLB outbreaks and for supporting sustainable disease management. This study aimed to assess the population distribution of D. citri in major citrus-producing regions of Indonesia and to evaluate its potential risk for HLB spread. The research was conducted over two consecutive years (2022–2023) across key citrus production areas on the islands of Java, Sumatra, Kalimantan, and Bali. A total of 206 sampling sites were surveyed using direct manual inspection and two types of yellow traps. D. citri was detected at 35 locations, representing new country records. The distribution pattern was relatively uniform in Sumatra but more scattered in Java and Kalimantan, with the highest population densities observed in the lowland areas of Bengkulu. These findings provide critical insights into D. citri distribution patterns and support targeted surveillance and sustainable management strategies to mitigate the impact of HLB in Indonesia.  
Co-Authors A. C. Hayward Abd. Rasyid Syamsuri Ani Widiastuti, Ani Aries Bagus Sasongko, Aries Bagus Arif Wibowo Arif Wibowo Ariyanti, Nur Fitriana BUDI SETIADI DARYONO Christanti Sumardiyono Damanik, Nina Septania Donny Widianto Donovan, Nerida Edhi Martono Eka Tarwaca Susila Putra Endang Sulistyaningsih Haris Setyaningrum 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 Ramot Christian Santika, Islaminati Anna Saraswati, Vivian Thea Soffan, Alan 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