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INDONESIA
Jurnal Fitopatologi Indonesia
Published by Institut Pertanian Bogor
ISSN : 02157950     EISSN : 23392479     DOI : -
Core Subject : Health,
Medicine & Pharmacology
Jurnal Fitopatologi Indonesia (JFI) is an official publication owned by the Indonesian Phytopathology Society (Perhimpunan Fitopatologi Indonesia). In 2010, JFI management was given to PFI Komda Bogor. Since then, JFI has been published 6 times (January, March, May, July, September, and November).
Arjuna Subject : -
Articles 5 Documents
 1 
Search results for , issue "Vol. 13 No. 3 (2017)" : 5 Documents clear
Kemampuan Tumbuhan Terna dalam Menekan Potensi Inokulum Rigidoporus microporus Yulianti, Sika; Suwandi, Suwandi; Nurhayati, Nurhayati
Jurnal Fitopatologi Indonesia Vol. 13 No. 3 (2017)
Publisher : The Indonesian Phytopathological Society (Perhimpunan Fitopatologi Indonesia)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1252.093 KB) | DOI: 10.14692/jfi.13.3.81

Abstract

White root disease caused by Rigidoporus microporus is an important disease of rubber tree and is very difficult to control. The ability of some herbaceous plant species to suppress inoculum potential and infection of R. microporus was studied in a pot trial.  Nine species of herbaceous plants were examined, i.e. arrowroot (Marantha arundinacea), java curcumin (Curcuma xanthorrhiza), sansevieria (Sansevieria fasciata), Mallaca galangal (Alpinia malaccensis), greater galangal (Alpinia galanga), Indian shot (Canna indica), curcumin (Curcuma longa), wild taro (Colocasia esculenta), and water yam (Dioscorea alata). Pathogen’s inocula as mycelial colonizing rubber wood sticks were buried for 90 days in soil planted with tested plants. The results showed that formation of R. microporus rhizomorph in the soil was lower in pots planted with arrowroot, java cucurmin, sansevieria, Indian shot, and wild taro.  All herbaceous plants, except sansevieria, caused suppression of inoculum viability and rhizomorph development.  Further observation showed no colonization of rhizomorph nor necrosis of the root was found, except on Mallaca galangal and sansevieria.
Identifikasi Patotipe Xanthomonas oryzae pv. oryzae dari Tanaman Padi di Sulawesi Selatan Asysyuura, Asysyuura; Nawangsih, Abdjad Asih; Mutaqin, Kikin Hamzah; Sudir, Sudir
Jurnal Fitopatologi Indonesia Vol. 13 No. 3 (2017)
Publisher : The Indonesian Phytopathological Society (Perhimpunan Fitopatologi Indonesia)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (355.562 KB) | DOI: 10.14692/jfi.13.3.73

Abstract

Xanthomonas oryzae pv. oryzae is the causal agent of bacterial leaf blight (BLB), one of important constraint in rice production. The pathogen is known to have many pathotypes which caused difficulties in disease control. This research was conducted to determine the distribution of X. oryzae pv. oryzae’s pathotypes in seven districts in South Sulawesi. Grouping of pathotypes was performed according to Kozaka method, i.e. based on the response of differential rice varieties. Infection of X. oryzae pv. oryzae was confirmed by PCR using specific primers XOR-R2/XOR-F.  Out of 36 isolates, 29 isolates were identified as X. oryzae pv. oryzae which belong to pathotype III (6 isolates), pathotype IV (21 isolates), and pathotype XII (2 isolates).  This result indicated that X. oryzae pv. oryzae pathotype IV was distributed widely in South Sulawesi.
Deteksi dan Identifikasi Fitoplasma yang Berasosiasi dengan Penyakit Layu Kelapa Di Pulau Derawan, Kalimantan Timur Prasetyo, Agus Eko; Mutaqin, Kikin Hamzah; Giyanto, Giyanto
Jurnal Fitopatologi Indonesia Vol. 13 No. 3 (2017)
Publisher : The Indonesian Phytopathological Society (Perhimpunan Fitopatologi Indonesia)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (979.473 KB) | DOI: 10.14692/jfi.13.3.89

Abstract

Coconut is a major commodity in Derawan island as source of additional income for the farmers. Research was conducted to detect and identify phytoplasmas associated with coconut wilt disease in Derawan island. Coconut wilt disease was indicated by the typical symptoms, i.e.  leaf yellowing, shorten of coconut sheaths and leaves, necrosis and collapse of old leaves, and also nut fall.  The presence of phytoplasmas in phloem tissues of coconut stem was observed using fluorescence and electron microscope.  Identification of phytoplasmas was carried out by nested-PCR and sequencing of the 16S rRNA gene.  DNA fragment of phytoplasma with the size of 1.25 kbp was successfully amplified using primer pairs P1/P7, followed by primer pairs R16F2n/R16R2.  Sequence analysis of the amplified fragments showed that phytoplasma associated with coconut wilt disease in Derawan island belongs to 16SrII (witches broom phytoplasma) and 16SrXI (ca. Phytoplasma oryzae) groups.
Deteksi dan Identifikasi Spesies Meloidogyne Penyebab Umbi Berbintil pada Kentang Asal Sulawesi Utara Utami, Budi Sri; Supramana, Supramana; Giyanto, Giyanto
Jurnal Fitopatologi Indonesia Vol. 13 No. 3 (2017)
Publisher : The Indonesian Phytopathological Society (Perhimpunan Fitopatologi Indonesia)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (542.673 KB) | DOI: 10.14692/jfi.13.3.98

Abstract

Root-knot nematode (Meloidogyne spp.). is one of the main constraint of potato production in North Sulawesi.  Little is known about Meloidogyne species infecting potatoes in North Sulawesi.  Therefore, research was conducted to identify Meloidogyne spp. on potatoes in North Sulawesi and further study their relationship with related species from other countries.  Infected potato tubers with pimple-like knot symptom were collected from three potato production centers, i.e. Kakenturan (South Minahasa), Purworejo (East Bolaang Mongondow) and Singsingon (…?? Bolaang Mongondow).  Morphological identification was conducted based on the perineal pattern of  the female; whereas molecular identification was conducted by PCR using specific primer for ITS-rDNA, followed by DNA sequencing and phylogenetic analysis. Two Meloidogyne species were identified i.e.  M. javanica (samples form Kakenturan, Purworejo and Singsingon) and M. incognita (samples from Purworejo). M. javanica and M. incognita from North Sulawesi are similar to the related species from China with homology level of 97.5 % and 100 %, respectively.
Penapisan dan Identifikasi Bakteri Kitinolitik Penghambat Pertumbuhan Ganoderma boninense in Vitro Wibowo, Risky Hadi; Mubarik, Nisa Rachmania; Rusmana, Iman; Thenawidjaya, Maggy
Jurnal Fitopatologi Indonesia Vol. 13 No. 3 (2017)
Publisher : The Indonesian Phytopathological Society (Perhimpunan Fitopatologi Indonesia)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (383.406 KB) | DOI: 10.14692/jfi.13.3.105

Abstract

Chitinolytic bacteria have been reported as biocontrol agents and have the ability to produce chitinase enzymes. The objective of the research was to obtain chitinase producing bacteria that had antagonistic activity to Ganoderma boninense, a causal agent of basal stem rot on oil palm. A total of 63 isolates of chitinase producing bacteria were isolated from soil of Bukit Dua Belas National Park and oil palm plantation in Jambi Province; all was screened for their potency in inhibiting G. boninense in vitro. Three isolates designated TB04-05, SW01-11, and SW02-08 were potentially suppressed and inhibited the mycelium growth of G. boninense in vitro. Based on their specific chitinase activity, these three isolates produced the highest level of chitinase enzyme of 6.3072 U mg-1 protein, 6.0385 U mg-1 protein and 6.1279 U mg-1 protein, respectively after 24 hr incubation. Based on 16S RNA identification, strain TB04-05 had similarity with Bacillus cereus, whereas strains SW01 and SW02-08 had similarity with Bacillus thuringiensis.

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