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Selection and characterization of siderophore-producing rhizobacteria and potential antagonistic activity toward Ralstonia solanacearum

Ralstonia solanacearum is an important disease of tomato. An alternative method to control the disease is the application of biocontrol agents. Plant Growth-Promoting Rhizobacteria (PGPR) could be used as potential biocontrol agents. PGPR with siderophores is among compounds having important role in disease suppression. This experiment was conducted to select and characterize the siderophore-producing rhizobacteria from tomato and to
determine their potential as antagonistic agents for R. solanacearum. Candidates of the PGPR were isolated from tomato grown in West Java Province, Indonesia. The isolates were detected as siderophore-producing bacteria using CAS medium. Among 29 isolates producing siderophore and having negative result on hypersensitivity reaction, two isolates provided the widest diameter of inhibition zone toward R. solanacearum. Both isolates were CP1C and CP2D with diameter of inhibition zone up to 3.6 and 7.0 mm, respectively. Based on the sequence of 16S rDNA, isolate CP1C was identified as Brevundimonas sp., while isolate CP2D was identified as Enterobacter sp. Both bacteria did not cause negative effect on the increasing plant height and dry weight of the plants, compared with control.

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Informasi Detail
Judul Seri
Biotropia The Southeast Asian Journal of Tropical Biology
No. Panggil
Rak MIPA
Penerbit
Bogor : Seameo Biotrop Southeast Asian Regional Centree for tropical biology.,
Deskripsi Fisik
Hal. 85-93
Bahasa
Indonesia
ISBN/ISSN
1907770X
Klasifikasi
NONE
Tipe Isi
-
Tipe Media
-
Tipe Pembawa
-
Edisi
Volume 24, Nomor 2
Subjek
Bacterial wilt
biocontrol
Brevundimonas
Enterobacter
PGPR
Info Detail Spesifik
-
Pernyataan Tanggungjawab
Versi lain/terkait

Tidak tersedia versi lain

Lampiran Berkas
Tidak Ada Data
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