SciELO - Scientific Electronic Library Online

 
vol.40Boron Leaching Decreases withIncreases on Soil pHSoil Water Potentials and Capsicum annuum L. under Salinity author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand

Journal

Article

Indicators

Related links

Share


Revista Brasileira de Ciência do Solo

Print version ISSN 0100-0683On-line version ISSN 1806-9657

Abstract

MOURA, Ginaini Grazielli Doin de et al. Rhizobia Isolated from Coal Mining Areas in the Nodulation and Growth of Leguminous Trees. Rev. Bras. Ciênc. Solo [online]. 2016, vol.40, e0150091.  Epub Apr 26, 2016. ISSN 1806-9657.  https://doi.org/10.1590/18069657rbcs20150091.

An alternative for recovery of areas degraded by coal mining is revegetation with rapidly growing leguminous trees, which often do not establish in low fertility soils. The objective of this study was to evaluate the efficiency of native rhizobia isolated from coal mining areas in the nodulation and growth of leguminous trees. We isolated 19 strains of rhizobia from a degraded soil near Criciúma, SC, Brazil, and evaluated the nodulation and growth-promoting capacity of the inoculated isolates for bracatinga (Mimosa scabrella), maricá (M. bimucronata) and angico-vermelho (Parapiptadenia rigida). Isolates UFSC-B2, B6, B8, B9, B11 and B16 were able to nodulate bracatinga, providing average increases of 165 % in shoot dry matter, with a significant contribution to N accumulation. Isolates UFSC-B5, B12, and M8 favored nodulation and growth of maricá, especially isolate UFSC-B12, which promoted increases of 370 % in N accumulation compared to treatment with N fertilizer. All strains were inefficient in promoting growth and N uptake by angico-vermelho. In conclusion, isolation and use of selected rhizobia for bracatinga and maricá plant inoculation can contribute to the growth and accumulation of N, with prospects for use in programs for revegetation of degraded soils in coal mining areas.

Keywords : environmental recovery; revegetation; diazotrophs; bioremediation.

        · text in English     · English ( pdf )