scholarly journals The microbial diversity and structure in peat land forest in Indonesia

2019 ◽  
Vol 5 (1) ◽  
pp. 133-144
Author(s):  
MJH Talukder ◽  
Hui Sun

Soil of tropical forest ecosystem plays very crucial part in controlling the universal carbon cycle. The isolation of microorganisms and their identification are important for understanding their vital role on transformation of organic matter of this ecosystem. Soil storage maximum microbial genetic diversity because of it’s a multilayered environment. No complete methods were discovered yet to cultivate majority of soil microorganisms. A little is known about microbial structure and their essentiality in tropical peat lands compared to most other terrestrial and oceanic habitats. In providing insight to the impacts of land-use of peat land on microbes in Central Kalimantan, Borneo Indonesia, we examined the community structure and diversity of bacteria and fungi in different peat forest soil including: i) natural peat swamp forest (well mixed swamp forest type); ii) disturbed peat soil and iii) mineral soils by using 454 pyrosequencing technology. The results showed that no significant difference was found for diversity and evenness among the sites of fungal community. However, natural peat swamp forest had the highest species richness (Chao1), which was significantly higher than the other two sites (P<0.05 and P<0.05). According to the OTUs analysis four fungi phyla were obtained of which 45 species were classified. The Ascomycota was the most abundant phylum, followed by Basidiomycota, Zygomycota and Glomeromycota. The natural peat swamp forest and disturbed peat soil harbored the maximum number Ascomycota. On the other hand, mineral soil and natural peat soil contained the highest number of Basidiomycota. The top species in natural peat swamp forest included Sugiyamaella paludigena, Polyancora globosa and Ganoderma gibbosum. The mineral soil enriched the abundance of Penicillium herquei, Sugiyamaella paludigena and the disturbed peat soil contained the highest frequency of Polyancora globosa, Gymnopilus lepidotus. According to the PCoA analysis, the community structure of fungus in natural peat soil differed significantly from mineral soil (P=0.04) and disturbed peat soil (P=0.039). No significant difference was found for bacterial species richness (Chao1) among the sites. The diversity of bacteria in disturbed peat soil significantly differed from the other sites (P<0.05 and P<0.05). eleven bacterial phyla and 53 genera were examined. All of the three sites contained the similar abundance of Proteobacteria. The natural peat swamp forest and disturbed peat soil harbored the most abundant Acidobactria. Genera Mycobacterium, Gp1, Gp13, Gp2, Burkholderia, Actinospica, Aciditerrimonas were found in all the sites. Genera Granulibacter, Gp4, Acidisoma, Clostridium_sensu, Clostridium_ XI were only observed in natural peat swamp forest. Genera Rudaea, Rhodopila, Streptomycetes were found only mineral soil. The PCoA analysis showed that the structure of bacteria in natural peat swamp forest significantly differed from the disturbed peat soil (P=0.045). Overall, the bacterial species richness and diversity are more among the sites than of the fungi. J. Biodivers. Conserv. Bioresour. Manag. 2019, 5(1): 133-144

2020 ◽  
Vol 70 (11) ◽  
pp. 5648-5653 ◽  
Author(s):  
Chollachai Klaysubun ◽  
Kenika Lipun ◽  
Kannika Duangmal

A novel actinobacterium, designated strain K10HN5T, was isolated from a peat soil sample collected from Kantulee peat swamp forest, Surat Thani Province, Thailand and its taxonomic position was determined using a polyphasic approach. Strain K10HN5T contained meso-diaminopimelic acid, arabinose, galactose, glucose and ribose in its whole-cell hydrolysates. The predominant menaquinone was MK-8(H4). The major fatty acids were iso-C16 : 0, iso-C15 : 0 and iso-C16 : 1H. Mycolic acids were not present. The polar lipid profile consisted of diphosphatidylglycerol, phosphatidylcholine, phosphatidylethanolamine, phosphatidylmethylethanolamine, hydroxyphosphatidylethanolamine, hydroxyphosphatidylmethylethanolamine and phosphatidylinositol. The 16S rRNA gene sequence analysis indicated that it was closely related to Pseudonocardia bannensis DSM 45300T (97.9 %) and Pseudonocardia xinjiangensis JCM 11839T (97.9 %). Strain K10HN5T exhibited low average nucleotide identity and digital DNA–DNA hybridization values with P. bannensis DSM 45300T (82.6, 28.7 %) and P. xinjiangensis JCM11839T (76.3, 22.2 %). The DNA G+C content of strain K10HN5T was 72.4 mol%. Based on polyphasic data, strain K10HN5T represents a novel species of the genus Pseudonocardia , for which the name Pseudonocardia acidicola sp. nov. is proposed. The type strain is K10HN5T (=TBRC 10048T=NBRC 113897T).


2003 ◽  
Vol 9 (1) ◽  
pp. 13-17
Author(s):  
Suciatmih Suciatmih

In order to describe the vesicular-arbuscular mycorrhizal (VAM) status of plants growing on peat soil, a study was carried out in the peat swamp forest of Setia Alam Jaya in Sebangau, Central Kalimantan. Out of 146 plant root samples belonging to 48 plant species from 25 families examined, all plants colonized by VAM fungi namely 14 (29.2 percent) high level, 32 (66.7 percent) medium level, and 2 (4.1 percent) low level respectively.


1993 ◽  
Vol 3 (2) ◽  
pp. 169-179 ◽  
Author(s):  
Kang Nee ◽  
Lee Pheng Guan

SummaryThe North Selangor peat-swamp forest occupies an area of about 75,000 ha and has been extensively logged for timber. Of the six sites surveyed, three were located in regenerating or selectively logged areas and contained a higher proportion of forest-dependent species of birds than the other three, which had been extensively cleared by logging and for agriculture. The presence of the nearby Kuala Selangor Nature Park should not diminish the conservation value of the peat-swamp forest, at least where the avifauna is concerned, as their avifauna complement one another.


2016 ◽  
Vol 2 (1) ◽  
Author(s):  
Andi Russel Mojiol ◽  
Wahyudi Wahyudi ◽  
Wahyudi Wahyudi ◽  
Narbert Nasly ◽  
Narbert Nasly

<p>The aim of the study was to evaluate the growth performance of three indigenous tree species planted under open area planting technique of burned area at Klias Peat Swamp Forest, Beaufort, Sabah. Three indigenous tree species was used in this study, namely are <em>Cratoxylum arborescens</em> (Vahl) Blume (Geronggang), <em>Alstonia spathulata</em> Blume (Pulai), and <em>Stemonurus scorpioides</em> Becc. (Katok). A total of 45 seedlings for each species were examined using Randomized Complete Block Design (RCBD) with spacing of 3mx3m. Data collection for height, diameter, and survivality was recorded every two weeks within 10 weeks period from the seedlings was planted. Results from this study showed, the growth performance of Geronggang species was much better than the Pulai species, while all the Katok seedlings were died after week 6 in this experiment. The Geronggang species had the average mean height increment of 24.17 cm and average mean diameter increment of 2.76 mm, while Pulai species had average mean height increment of 9.36 cm and average mean diameter increment with 1.86 mm. For the survivality results, it showed that the Geronggang species had the highest survivality rate at 93.33% and Pulai species with 86.67%. There was a significant difference in term of relative height growth rate between Geronggang and Pulai species.  However, there was no significant difference in term of relative diameter growth rate at significant level of P ≤ 0.05. The findings indicates that Geronggang and Pulai are suitable to be planted at burned area in Klias peat swamp forest for the purpose of reforestation using open area planting technique, while the Katok species is not suitable due to environment consideration. The better growth performance of the Geronggang and Pulai species are because they can easily adapted with the open area planting at the study site.</p>


2016 ◽  
Vol 2 (3) ◽  
pp. 11-14
Author(s):  
Sosilawaty Sosilawaty ◽  
Yanarita Yanarita ◽  
Tudi Andrean

Forests are natural resources that provide double benefits, direct and indirect benefits. The direct benefit of forest is as a source of various types of goods, such as woods, saps, barks, leaves, roots, fruits, and flowers that can be used directly by humans or become raw materials for various industries. The special-purpose forest of Tumbang Nusa is a secondary peat swamp forest. Peat swamp forest is a forest formation quite widespread in Indonesia. The term arises because swamp forest and peat forest are basically always adjacent and often do not have clear boundaries that are so-called peat swamp forests. The purpose of this study was to find out the structure and species composition (species dominance, species diversity, species richness and species evenness) of secondary peat swamp forest vegetation in special-purpose forest of Tumbang Nusa, Jabiren Raya Subdistrict, Central Kalimantan Province. The results of the study showed that the vegetation structure by diameter classes was dominated by the vegetation with small diameter (0-9 cm) and by height classes was dominated by the vegetation with low height-class (0-5 m). The diversity of vegetation in the study plots showed that there were 42 species of vegetation consisting of 24 families, and the most common species found were the family of Lauraceae (5 species), Dipterocarpaceae (4 species), Myristicaceae, Myrtaceae and Guttiferae (3 species), Podocarpaceae, Apocynaceae, Ebenaceae, Moraceae and Annonaceae (2 species), and a few other family (one species of each). The species diversity at seedling and sapling stages was moderate (H' ≥ 2 and < 3) while the diversity at pole and tree stages was low (H' < 2). The values of species richness index at seedling, sapling and pole stages were moderate (R = 3.5 - 5.0) while at the tree stage was relatively low (R > 3.5). The species evenness index at seedling and sapling stages was high (E > 0.6) while at the pole and tree stages moderate (E = 0.3 to 0.6).


Ecosystems ◽  
2019 ◽  
Vol 22 (8) ◽  
pp. 1852-1868 ◽  
Author(s):  
Kiwamu Ishikura ◽  
Ryuichi Hirata ◽  
Takashi Hirano ◽  
Yosuke Okimoto ◽  
Guan Xhuan Wong ◽  
...  

2006 ◽  
Vol 52 (1) ◽  
pp. 77-88 ◽  
Author(s):  
Tomoko Nakano ◽  
Wataru Takeuchi ◽  
Gen Inoue ◽  
Masami Fukuda ◽  
Yoshifumi Yasuoka

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