The bacterial diversity investigation in oil palm plantation using terminal restriction length polymorphism

Situmorang, Elizabeth Caroline; Nugroho, Yogo Adhi; Prameswara, Andriessa; Andarini, Esti; Hartono,; Setyobudi, Roy Hendroko; Toruan-Mathius, Nurita; Liwang, Tony

doi:10.1063/1.4953491

Cited by 5 publications

(3 citation statements)

References 22 publications

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“…Thus, the presence of Catenibacterium (and to a lower extent some of other Firmicutes) is most likely associated with the intestinal microbiota of these mammal species [ 69 , 70 , 71 , 72 ]. However, we should point out that Catenibacterium has also been found in soils from oil palm plantations [ 73 ] and maritime soils of the southern Antarctic [ 74 ], highlighting the need for further studies concerning the ecosystem functions of these microbes.…”

Section: Resultsmentioning

confidence: 99%

Mining the Microbiome of Key Species from African Savanna Woodlands: Potential for Soil Health Improvement and Plant Growth Promotion

et al. 2020

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(1) Aims: Assessing bacterial diversity and plant-growth-promoting functions in the rhizosphere of the native African trees Colophospermum mopane and Combretum apiculatum in three landscapes of the Limpopo National Park (Mozambique), subjected to two fire regimes. (2) Methods: Bacterial communities were identified through Illumina Miseq sequencing of the 16S rRNA gene amplicons, followed by culture dependent methods to isolate plant growth-promoting bacteria (PGPB). Plant growth-promoting traits of the cultivable bacterial fraction were further analyzed. To screen for the presence of nitrogen-fixing bacteria, the promiscuous tropical legume Vigna unguiculata was used as a trap host. The taxonomy of all purified isolates was genetically verified by 16S rRNA gene Sanger sequencing. (3) Results: Bacterial community results indicated that fire did not drive major changes in bacterial abundance. However, culture-dependent methods allowed the differentiation of bacterial communities between the sampled sites, which were particularly enriched in Proteobacteria with a wide range of plant-beneficial traits, such as plant protection, plant nutrition, and plant growth. Bradyrhizobium was the most frequent symbiotic bacteria trapped in cowpea nodules coexisting with other endophytic bacteria. (4) Conclusion: Although the global analysis did not show significant differences between landscapes or sites with different fire regimes, probably due to the fast recovery of bacterial communities, the isolation of PGPB suggests that the rhizosphere bacteria are driven by the plant species, soil type, and fire regime, and are potentially associated with a wide range of agricultural, environmental, and industrial applications. Thus, the rhizosphere of African savannah ecosystems seems to be an untapped source of bacterial species and strains that should be further exploited for bio-based solutions.

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Section: Resultsmentioning

confidence: 99%

Mining the Microbiome of Key Species from African Savanna Woodlands: Potential for Soil Health Improvement and Plant Growth Promotion

et al. 2020

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“…It is indicated that the endemic soil is more susceptible to Ganoderma boninense. It is supported by another study that stated that Ganoderma boninense was elevated with a decline in the presence of indigenous beneficial bacteria [15]. In general, the changes in bacterial composition are more influenced by the agricultural An OTU table representing the occurrence of each OTU in each sample was utilized to make a heat map.…”

Section: Bacterial Community Structurementioning

confidence: 92%

Preliminary Study on the Bacterial Community Structure of Ganoderma Soil Under Oil Palm Plantation

Hidayat¹,

Farrasati²,

Pradiko³

et al. 2021

Advances in Biological Sciences Research

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Basal stem rot (BSR) disease is caused by Ganoderma boninense; it has become a major disease in oil palm plantations over the years and causes a significant yield drop in oil palm plantations, especially in Sumatera. Nowadays, the incidence level of BSR across Sumatera has reached 39% and is predicted to keep increasing and threatening the sustainability of oil palm plantations between 2050 and 2100. Some researchers believe that Ganoderma is dominant due to the unbalance of the microbial community in the soil ecosystem. This study aims to discover the bacterial community structure in the soil under Ganoderma boninense infection in oil palm plantations. The study was conducted by comparing the soil infected by Ganoderma boninense (G+) and the healthy soil (G-) through the next-generation sequencing (NGS) by Illumina MiSeq. The study shows that the total bacteria of the healthy soil (G-) was 177 times higher than the endemic soil with a total copy number 1.32x10 8 and 7.44x10 5 , respectively. Acidobacteria was the dominant phyla in the healthy soil (G-), followed by Proteobacteria, and their relative abundance are 31.45% and 29.19%, respectively. On the other hand, the relative abundance of Acidobacteria in the endemic soil (G+) was decreased to 18.73% while Proteobacteria was increased to 38.34%. However, the abundance of these phyla in the endemic soil (G+) is still lower than in the healthy soil (G-). At the level species, the healthy soil (G-) was more diverse than the endemic soil (G+). It shows that the endemic soil is more susceptible to Ganoderma boninense due to its dominance in the soil ecosystems. The 16S rRNA gene sequencing revealed that more than 60% of OTUs had <98% of similarity. It is indicated that some species, both in healthy soil (G-) and endemic soil (G+), under oil palm plantations might be novel species.

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“…Bahan organik merupakan sumber energi bagi biota tanah, dimana biota tanah memiliki peran penting terhadap banyak proses yang terjadi di dalam tanah termasuk penyerapan hara oleh tanaman (Ashton-Butt et al, 2018). Beberapa penelitian terdahulu melaporkan bahwa aplikasi bahan organik dapat meningkatkan diversitas dan kelimpahan dari mikroorganisme tanah seperti cacing tanah yang memiliki banyak manfaat untuk mendukung pertumbuhan tanaman (Carron et al, 2015a;2015b;Situmorang et al, 2014) Lebih lanjut Hal yang sama juga dilaporkan oleh Tao et al, (2016) yang menyatakan bahwa aplikasi TKS dapat meningkatkan aktivitas fauna tanah dan terjadi peningkatan kelimpahan makrofauna tanah termasuk semut, cacing tanah, dan beberapa jenis kumbang.…”

Section: Perbaikan Reaksi Biokimia DI Dalam Tanahunclassified

Pentingnya Bahan Organik Untuk Meningkatkan Efisiensi Dan Efektivitas Pemupukan Di Perkebunan Kelapa Sawit

Ginting¹

2020

war

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Sumber bahan organik di perkebunan kelapa sawit cukup besar, utamanya TKS dan POME yang merupakan produk samping dari pengolahan TBS di pabrik kelapa sawit. Sayangnya sejauh ini perhatian pekebun kelapa sawit terhadap pemanfaatan bahan organik di perkebunan kelapa sawit hanya dititik beratkan pada pengaruh langsung bahan organik terhadap pertumbuhan dan produksi tanaman yaitu terhadap kandungan hara yang ada pada bahan organik tersebut. Padahal, bahan organik memiliki peranan yang lebih penting dari hanya sekedar sebagai sumber hara, yaitu peranannya terhadap perbaikan kualitas tanah agar tanah memiliki kapasitas yang tinggi untuk menyediakan hara bagi tanaman sehingga dapat meningkatkan efisiensi dan efektivitas pemupukan. Telah banyak hasil penelitian yang mengungkapkan bahwa bahan organik dapat memperbaiki efisiensi dan efektivitas pemupukan melalui perannya dalam hal memperbaiki kualitas tanah. Dalam tulisan ini di uraikan secara ringkas bagaimana mekanisme bahan organik dalam meningkatkan efisiensi dan efektivitas pemupukan. Dari sifat fisik kimia misalnya, bahan organik berperan dalam memperbaiki struktur tanah sehingga tanah sebagai media tumbuh memberikan kondisi aerasi perakaran yang baik untuk mendukung perkembangan akar tanaman. Dari sifat kimia tanah, bahan organik berperan untuk meningkatkan KTK tanah sehingga hara yang dipalikasikan lewat pupuk tidak segera hilang tercuci dan dapat diserap oleh akar tanaman. Sementara itu dari sifat biologi tanah, bahan organik merupakan sumber energi bagi biota tanah untuk melakukan berbagai aktivitasnya di dalam tanah, disamping sebagai penghasil enzim, hormon, dan senyawa-senyawa organik yang mempengaruhi dinamika dan ketersediaan hara di dalam tanah.

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The bacterial diversity investigation in oil palm plantation using terminal restriction length polymorphism

Cited by 5 publications

References 22 publications

Mining the Microbiome of Key Species from African Savanna Woodlands: Potential for Soil Health Improvement and Plant Growth Promotion

Mining the Microbiome of Key Species from African Savanna Woodlands: Potential for Soil Health Improvement and Plant Growth Promotion

Preliminary Study on the Bacterial Community Structure of Ganoderma Soil Under Oil Palm Plantation

Pentingnya Bahan Organik Untuk Meningkatkan Efisiensi Dan Efektivitas Pemupukan Di Perkebunan Kelapa Sawit

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