Abstract：
:Rubber tree (Hevea brasiliensis) is of major economic importance in Southeast Asia and for small land holders in Thailand in particular. Due to the high value of latex, plantations are expanding into unsuitable areas, such as the northeast province of Thailand where soil fertility is very low and therefore appropriate management practices are of primary importance. Arbuscular mycorrhizal fungi (AMF) contribute to plant growth through a range of mechanisms and could play a key role in a more sustainable management of the rubber plantations. We described the diversity of AMF associated with rubber tree roots in Northeast Thailand in relation to tree age and soil parameters along a chronosequence of rubber tree plantations. Cassava fields were included for comparison. Rubber tree and cassava roots harbored high diversity of AMF (111 Virtual Taxa, VT), including 20 novel VT. AMF VT richness per sample was consistently high (per site mean 16 to 21 VT per sample) along the chronosequence and was not related to soil properties. The composition of AMF communities differed between cassava and rubber tree plantations and was influenced by soil texture and nutrient content (sand, K, P, Ca). AMF community composition gradually shifted with the age of the trees. Our results suggest that the high diversity of AMF in this region is potentially significant for maintaining high functionality of AMF communities.
journal_name
Mycorrhizajournal_title
Mycorrhizaauthors
Herrmann L,Lesueur D,Bräu L,Davison J,Jairus T,Robain H,Robin A,Vasar M,Wiriyakitnateekul W,Öpik Mdoi
10.1007/s00572-016-0720-5subject
Has Abstractpub_date
2016-11-01 00:00:00pages
863-877issue
8eissn
0940-6360issn
1432-1890pii
10.1007/s00572-016-0720-5journal_volume
26pub_type
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