Arbuscular Mycorrhizal Communities in the Roots of Sago Palm in Mineral and Shallow Peat Soils

Arbuscular Mycorrhizal Communities in the Roots of Sago Palm in Mineral and Shallow Peat Soils

Communities of arbuscular mycorrhizal fungi (AMF) in plant roots improve host plant growth. In this study, AMF communities in the roots of the sago palm (Metroxylon sagu Rottb.) were investigated in mineral soil (MS) and shallow peat soil (SPS) in Sarawak, Malaysia. MS exhibited lower moisture conte...

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Bibliographic Details
Published in:Agriculture (Basel) Vol. 11; no. 11; p. 1161
Main Authors: Asano, Koki, Kagong, Willy Vincent Anak, Mohammad, Siraj Munir Bin, Sakazaki, Kurumi, Talip, Muhamad Syukrie Abu, Sahmat, Siti Sahmsiah, Chan, Margaret Kit Yok, Isoi, Toshiyuki, Kano-Nakata, Mana, Ehara, Hiroshi
Format: Journal Article
Language:English
Published: Basel MDPI AG 01-11-2021
Subjects:
Abiotic factors
Acidic soils
Acidity
amplicon sequencing
arbuscular mycorrhizal fungi
Arbuscular mycorrhizas
Bulk density
Colonization
Host plants
Metroxylon sagu
Moisture content
Peat
peat soil
Peat soils
Phosphorus
Phosphorus pentoxide
Physicochemical properties
Plant growth
Plant roots
Roots
rRNA
sago palm
Small-subunit rRNA gene
Soil density
Soil depth
Soil investigations
Soil moisture
soil physicochemical properties
Soil properties
Taxonomy
Water content
Sarawak Malaysia
Malaysia
United States > US
Japan
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Summary:Communities of arbuscular mycorrhizal fungi (AMF) in plant roots improve host plant growth. In this study, AMF communities in the roots of the sago palm (Metroxylon sagu Rottb.) were investigated in mineral soil (MS) and shallow peat soil (SPS) in Sarawak, Malaysia. MS exhibited lower moisture content (MS, 38.1; SPS, 79.8%), higher pH (H2O) (MS, 4.6; SPS, 4.1), higher soil bulk density (MS, 1.03; SPS, 0.20 g cm−3), and higher nitrogen content (MS, 16.9; SPS, 2.7 kg m−3) than SPS at the same soil depth, while the phosphorus (P) content (Bray II) (MS, 1.6; SPS, 1.9 g P2O5 m−3) was similar. The AMF colonization rate was significantly lower in SPS (39.2 ± 12.5%) than in MS (73.2 ± 4.6%). The higher number of AMF operational taxonomic units (OTUs) was detected by amplicon sequencing of the partial small-subunit rRNA gene (MS, 78; SPS, 50). A neighbor-joining tree of obtained OTUs revealed that they belonged to Acaulosporaceae, Ambisporaceae, Claroideoglomeraceae, Gigasporaceae, and Glomeraceae. The lower abundance and diversity of AMF in SPS are possibly caused by abiotic factors, including soil physicochemical properties. Glomus and Acaulospora species detected in SPS might have strong tolerance against acidity and high soil moisture content.
ISSN:2077-0472
2077-0472
DOI:10.3390/agriculture11111161