Arbuscular Mycorrhization in Colombian and Introduced Rubber ( Hevea brasiliensis ) Genotypes Cultivated on Degraded Soils of the Amazon Region

Clara P. Peña-Venegas, Armando Sterling and Tatiana K. Andrade-Ramírez
Additional contact information
Clara P. Peña-Venegas: Sinchi Amazonic Institute of Scientific Research, Leticia 910001, Colombia
Armando Sterling: Sinchi Amazonic Institute of Scientific Research, Leticia 910001, Colombia
Tatiana K. Andrade-Ramírez: Sinchi Amazonic Institute of Scientific Research, Leticia 910001, Colombia

Agriculture, 2021, vol. 11, issue 4, 1-17

Abstract: Rubber ( Hevea brasiliensis , (Willd. Ex Adr. de Juss) Muell. Arg, Euphorbiaceae) is an important commercial latex-producing plant. Commercially, rubber is reproduced from a limited number of grifting genotypes. New promising genotypes have been selected to replace traditional genotypes. In addition, rubber has been promoted to recuperate Amazon soils degraded by extensive cattle ranching. Arbuscular mycorrhizal (AM) symbiosis is an important alternative for improving plant nutrition in rubber trees and recuperating degraded soils, but AM fungal communities on different plantations and in rubber genotypes are unknown. Spore abundance, root colonization and AM fungal community composition were evaluated in rubber roots of Colombian and introduced genotypes cultivated in degraded soils with different plantation types. Traditional (spore isolation and description; clearing and staining roots) and molecular techniques (Illumina sequencing) were used to assess AM fungi. Rubber roots hosted a diverse AM fungal community of 135 virtual taxa (VT) in 13 genera. The genus Glomus represented 66% of the total AM fungal community. Rubber genotype did not affect the arbuscular mycorrhization, hosting similar AM fungal communities. The composition of the AM fungal community on old and young rubber plantations was different. Diversity in AM fungi in rubber roots is an important characteristic for restoring degraded soils.

Keywords: Amazon; grifting plants; soil restoration (search for similar items in EconPapers)
JEL-codes: Q1 Q10 Q11 Q12 Q13 Q14 Q15 Q16 Q17 Q18 (search for similar items in EconPapers)
Date: 2021
References: View complete reference list from CitEc
Citations:

Downloads: (external link)
https://www.mdpi.com/2077-0472/11/4/361/pdf (application/pdf)
https://www.mdpi.com/2077-0472/11/4/361/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jagris:v:11:y:2021:i:4:p:361-:d:537421

Access Statistics for this article

Agriculture is currently edited by Ms. Leda Xuan

More articles in Agriculture from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().