Dataset Information

Linking prokaryotic community composition to carbon biogeochemical cycling across a tropical peat dome in Sarawak, Malaysia.

ABSTRACT: Tropical peat swamp forest is a global store of carbon in a water-saturated, anoxic and acidic environment. This ecosystem holds diverse prokaryotic communities that play a major role in nutrient cycling. A study was conducted in which a total of 24 peat soil samples were collected in three forest types in a tropical peat dome in Sarawak, Malaysia namely, Mixed Peat Swamp (MPS), Alan Batu (ABt), and Alan Bunga (ABg) forests to profile the soil prokaryotic communities through meta 16S amplicon analysis using Illumina Miseq. Results showed these ecosystems were dominated by anaerobes and fermenters such as Acidobacteria, Proteobacteria, Actinobacteria and Firmicutes that cover 80-90% of the total prokaryotic abundance. Overall, the microbial community composition was different amongst forest types and depths. Additionally, this study highlighted the prokaryotic communities' composition in MPS was driven by higher humification level and lower pH whereas in ABt and ABg, the less acidic condition and higher organic matter content were the main factors. It was also observed that prokaryotic diversity and abundance were higher in the more oligotrophic ABt and ABg forest despite the constantly waterlogged condition. In MPS, the methanotroph Methylovirgula ligni was found to be the major species in this forest type that utilize methane (CH₄), which could potentially be the contributing factor to the low CH₄ gas emissions. Aquitalea magnusonii and Paraburkholderia oxyphila, which can degrade aromatic compounds, were the major species in ABt and ABg forests respectively. This information can be advantageous for future study in understanding the underlying mechanisms of environmental-driven alterations in soil microbial communities and its potential implications on biogeochemical processes in relation to peatland management.

SUBMITTER: Dom SP

PROVIDER: S-EPMC7979770 | biostudies-literature | 2021 Mar

REPOSITORIES: biostudies-literature

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Linking prokaryotic community composition to carbon biogeochemical cycling across a tropical peat dome in Sarawak, Malaysia.

Dom Simon Peter SP Ikenaga Makoto M Lau Sharon Yu Ling SYL Radu Son S Midot Frazer F Yap Mui Lan ML Chin Mei-Yee MY Lo Mei Lieng ML Jee Mui Sie MS Maie Nagamitsu N Melling Lulie L

Scientific reports 20210319 1

Tropical peat swamp forest is a global store of carbon in a water-saturated, anoxic and acidic environment. This ecosystem holds diverse prokaryotic communities that play a major role in nutrient cycling. A study was conducted in which a total of 24 peat soil samples were collected in three forest types in a tropical peat dome in Sarawak, Malaysia namely, Mixed Peat Swamp (MPS), Alan Batu (ABt), and Alan Bunga (ABg) forests to profile the soil prokaryotic communities through meta 16S amplicon an ...[more]

PMID: 33742002

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Project description:Background and aimsMalaysia, like many developing countries, is undergoing epidemiologic transition where non-communicable diseases, including cancer, are emerging as a prevalent health burden. Sarawak is the largest state in Malaysia, located on the island of Borneo. Compiling region-specific cancer statistics is crucial for future planning and implementation of effective cancer management strategies.MethodsThis study utilized cancer data reported to the Sarawak State Health Department with a cancer notification form. Data was obtained from the State cancer database. Incidence, Age-Standardized Rate, frequency, cumulative rate, and lifetime risk were calculated. The population included Sarawak residents only who were defined as Malaysian citizens as well as permanent residents living in Sarawak at the time of diagnosis.ResultsBetween years 2011-2015, there were a total of 10,320 cancer cases (47.3% male). The incidence rate was approximately 16.6 persons per 100,000 population per year. An increasing trend was observed in cancer incidence with increasing age. Ethnic distribution reported the highest incidence among the Chinese (male cases:36.2% and female cases:36.4%), followed by the Iban (male cases:26.9% and female cases:24.5%), and Malay (male cases:18.3% and female cases:22.0%). The three most common cancers in male were colorectal (15.4%), nasopharyngeal (14.8%), and trachea, bronchus, lung (14.0%) cancer. In females, the first three common cancers were breast (27.9%), cervix uteri (11.6%), and colorectal (9.8%). There were wide disparities among common cancers across genders, different age groups and ethnic groups.ConclusionThe lifetime risk of a Sarawakian to develop cancer by age 75 is 1 in 11 in females and 1 in 10 in males. This present study provided a framework for the status and trend of cancer in Sarawak. These findings will provide additional information to guide strategy and resource planning in improving cancer care in Sarawak.

Dataset Information

Linking prokaryotic community composition to carbon biogeochemical cycling across a tropical peat dome in Sarawak, Malaysia.

Publications

Linking prokaryotic community composition to carbon biogeochemical cycling across a tropical peat dome in Sarawak, Malaysia.

Similar Datasets

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