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EFEKTIFITAS BAKTERI ENDOFIT DAN PENAMBAHAN INDOLE ACETIC ACID (IAA) DALAM MENINGKATKAN PERTUMBUHAN TANAMAN PADI Oryza sativa L.
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oleh Ramadhan, Aria Rizki , Oedjijono, Oedjijono , Hastuti, Ratih Dewi

Terbitan : Fakultas Biologi | Universitas Jenderal Soedirman, 2017
Institusi : Universitas Jenderal Soedirman
Gedung :
Lokasi Repository IOS Number
IOS4642.article-542
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Isolasi dan Karakterisasi Bakteri Endofit Pelarut Fosfat dan Penghasil Hidrogen Cyanide (HCN) dari Tanaman Bawang Merah (Allium cepa L)
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oleh Wandita, Ryan Hilda , Pujiyanto, Sri , Suprihadi, Agung , Hastuti, Ratih Dewi

Terbitan : Departemen Biologi, Fakultas Sains dan Matematika, Universitas Diponegoro, 2018
Institusi : Universitas Diponegoro
Gedung :
Lokasi Repository IOS Number
IOS129.article-19590

Related Subjects

Actinomycetes Escherichia coli K1.1 HCN IAA Listeria monocytogenes 5407 PGPB Pseudomonas pseudomallei 02 05 Xanthomonas oryzae pv. oryzae (Xoo) a causal agent of bacterial leaf blight (BLB) and plants inoculated with only Streptomyces spp. Plants inoculated with Xoo and sprayed with a chemical bactericide and plants inoculated with only Xoo served as positive controls and siderophore which included biocontrol characteristics. Morphological and colonization studies under SEM and light microscopy confirmed that the three isolates were endophytic Streptomyces spp. from different species. These studies found that the paddy plant which was inoculated with endophytic Streptomyces spp. AB131-1 and infected by Xoo could increase the height of plant and number of tillers antibacterial compound endophyte followed by AB131-1 and AB131-2. Two isolates (AB131-1 and LBR02) were able to produce chitinase is one of the most important pathogens of rice. The effectiveness of ten Streptomyces spp. isolates in suppressing Xoo disease was assessed in planta and in vitro. In planta experiments were carried out in a greenhouse and arranged in a randomized completely block design (RCBD) with three replications. Twenty treatments were tested which included plants inoculated with both Streptomyces spp. and Xoo onion phosphatase phosphate plant growth promoting bacteria plants inoculated with endophytic Streptomyces spp. were significantly taller and produced higher tiller number than control plants (P < 0.05). Streptomyces spp. isolate AB131-1 gave the highest plant height. In vitro studies on biocontrol mechanisms of selected Streptomyces spp. isolates showed that isolate LBR02 gave the highest inhibition activity on Xoo growth rice plants whereas plants not inoculated with either Streptomyces spp. or Xoo were used as negative controls. The results showed that the effect of endophytic Streptomyces spp. on BLB disease expressed as area under disease progress curve (AUDPC) was not significantly different to that on control plants (P > 0.05). However
Menampilkan 1 - 4 of 4 untuk pencarian: 'Hastuti, Ratih Dewi', lama mencari: 0.09s
Cover Image

EFEKTIFITAS BAKTERI ENDOFIT DAN PENAMBAHAN INDOLE ACETIC ACID (IAA) DALAM MENINGKATKAN PERTUMBUHAN TANAMAN PADI Oryza sativa L.
Article info application/pdf eJournal

oleh Ramadhan, Aria Rizki , Oedjijono, Oedjijono , Hastuti, Ratih Dewi

Terbitan : Fakultas Biologi | Universitas Jenderal Soedirman, 2017
Institusi : Universitas Jenderal Soedirman
Gedung :
Lokasi Repository IOS Number
IOS4642.article-542
Cover Image

Isolasi dan Karakterisasi Bakteri Endofit Pelarut Fosfat dan Penghasil Hidrogen Cyanide (HCN) dari Tanaman Bawang Merah (Allium cepa L)
Article info application/pdf eJournal

oleh Wandita, Ryan Hilda , Pujiyanto, Sri , Suprihadi, Agung , Hastuti, Ratih Dewi

Terbitan : Departemen Biologi, Fakultas Sains dan Matematika, Universitas Diponegoro, 2018
Institusi : Universitas Diponegoro
Gedung :
Lokasi Repository IOS Number
IOS129.article-19590
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Related Subjects

Actinomycetes Escherichia coli K1.1 HCN IAA Listeria monocytogenes 5407 PGPB Pseudomonas pseudomallei 02 05 Xanthomonas oryzae pv. oryzae (Xoo) a causal agent of bacterial leaf blight (BLB) and plants inoculated with only Streptomyces spp. Plants inoculated with Xoo and sprayed with a chemical bactericide and plants inoculated with only Xoo served as positive controls and siderophore which included biocontrol characteristics. Morphological and colonization studies under SEM and light microscopy confirmed that the three isolates were endophytic Streptomyces spp. from different species. These studies found that the paddy plant which was inoculated with endophytic Streptomyces spp. AB131-1 and infected by Xoo could increase the height of plant and number of tillers antibacterial compound endophyte followed by AB131-1 and AB131-2. Two isolates (AB131-1 and LBR02) were able to produce chitinase is one of the most important pathogens of rice. The effectiveness of ten Streptomyces spp. isolates in suppressing Xoo disease was assessed in planta and in vitro. In planta experiments were carried out in a greenhouse and arranged in a randomized completely block design (RCBD) with three replications. Twenty treatments were tested which included plants inoculated with both Streptomyces spp. and Xoo onion phosphatase phosphate plant growth promoting bacteria plants inoculated with endophytic Streptomyces spp. were significantly taller and produced higher tiller number than control plants (P < 0.05). Streptomyces spp. isolate AB131-1 gave the highest plant height. In vitro studies on biocontrol mechanisms of selected Streptomyces spp. isolates showed that isolate LBR02 gave the highest inhibition activity on Xoo growth rice plants whereas plants not inoculated with either Streptomyces spp. or Xoo were used as negative controls. The results showed that the effect of endophytic Streptomyces spp. on BLB disease expressed as area under disease progress curve (AUDPC) was not significantly different to that on control plants (P > 0.05). However