The Existence of Endophytic Actinobacteria from Rhododendron zoelerri Revealed by Culture-Dependent and Culture-Independent Approaches

Endophytic actinobacteria from medicinal plant may play a significant role in producing bioactive compounds. The information regarding their diversity is an important.  Rhododendron are traditionally used for treating human disorders. One of the selected Rhododendron used in this study was R.  zoell...

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Main Authors: Lestari, Yulin (Author), Murdini, Lia Aseptin (Author), Solihin, Dedy Duryadi (Author)
Format: EJournal Article
Published: Bogor Agricultural University, Indonesia, 2018-10-09.
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LEADER 03458 am a22003133u 4500
001 HAYATI_23531_Yulin%2025%20No.2
042 |a dc 
100 1 0 |a Lestari, Yulin  |e author 
700 1 0 |a Murdini, Lia Aseptin  |e author 
700 1 0 |a Solihin, Dedy Duryadi  |e author 
245 0 0 |a The Existence of Endophytic Actinobacteria from Rhododendron zoelerri Revealed by Culture-Dependent and Culture-Independent Approaches 
260 |b Bogor Agricultural University, Indonesia,   |c 2018-10-09. 
500 |a https://journal.ipb.ac.id/index.php/hayati/article/view/23531 
520 |a Endophytic actinobacteria from medicinal plant may play a significant role in producing bioactive compounds. The information regarding their diversity is an important.  Rhododendron are traditionally used for treating human disorders. One of the selected Rhododendron used in this study was R.  zoelleri from Papua origin, which has been conserved and grown in Cibodas Botanical Garden, West Java, Indonesia. The aim of this study was to assess the existence of endophytic actinobacteria from R. zoelleri based on a culture-dependent and their community structure based on a culture-independent approach. Culturable actinobacteria were isolated and cultured on HV medium. Polymerase Chain Reaction-Denaturing Gradient Gel Electrophoresis (PCR-DGGE) targeting the metagenomic 16S rRNA was used to analyse the structure of the actinobacterial community. Six culturable endophytic actinobacteria (200 cfu/g fresh weight) from R. zoelleri were successfully isolated, three isolates from leaf, and the other isolates were obtained from stem. The six culturable isolates were RZP 1.3, RZP 1.1, RZP 2.2, RZPB 1.1, RZPB 7.1, RZPB 4.1. Based on their morphological characteristics, the endophytes have Streptomyces characters. The existence of Streptomyces spp. were also confirmed with molecular analysis based on 16S rRNA gene. The phylogenetic analysis based on 16S rRNA gene to the reference strains available in EzTaxon-e database showed that six isolates were closely related to S. djakartensis strains of NBRC 15409ᵀ(99.19%), S. tritolerans strains of DAS 165T(99.90%), S. coelicoflavus strains of NBRC 15399T(99.59). However, they showed differences in morphological characteristics as compared with the reference strains. The metagenomic analysis of the DGGE profile based on 16S rRNA gene showed the community structure of endophytic actinobacteria from R. zoelleri which was represented by 13 DGGE bands. The bands were closely related to Agromyces, Gordonia, Microbacterium, Micromonospora, Propionibacterium, Saccharomonospora, Streptomyces which have 93.18%-100% similarity. Based on the data, it showed diversity of endophytic actinobacteria from R. zoelleri which may be further assess for their novelty and bioprospecting. 
546 |a eng 
690 |a actinobacteria 
690 |a DGGE 
690 |a endophyte 
690 |a metagenomic 
690 |a R. zoelleri 
690 |a 16S rRNA gene 
655 7 |a info:eu-repo/semantics/article  |2 local 
655 7 |a info:eu-repo/semantics/publishedVersion  |2 local 
655 7 |a Peer-reviewed Article  |2 local 
786 0 |n HAYATI Journal of Biosciences; Vol. 25 No. 2 (2018): April 2018; 54 
786 0 |n 2086-4094 
786 0 |n 1978-3019 
787 0 |n https://journal.ipb.ac.id/index.php/hayati/article/view/23531/Yulin%2025%20No.2 
856 4 1 |u https://journal.ipb.ac.id/index.php/hayati/article/view/23531/Yulin%2025%20No.2  |z Get fulltext