Publications by authors named "George Rodrigues Lambais"
This study analyzed arbuscular mycorrhizal fungi (AMF) activity and soil chemical properties in Aspidosperma pyrifolium, Bauhinia ungulata, Caesalpinia pyramidalis, and Caesalpinia ferrea. AMF spores, root colonization, total glomalin-related soil protein (T-GRSP), easily extracted GRSP (EE-GRSP), and soil chemical properties were measured four times (July 2019, 2020 and December 2019, 2020). Significant differences were observed in AMF spores, root colonization, T-GRSP, and EE-GRSP among the plant species and across seasons.
View Article and Find Full Text PDFDespite the strong ecological importance of ectomycorrhizal (ECM) fungi, their vertical distribution remains poorly understood. To our knowledge, ECM structures associated with trees have never been reported in depths below 2 meters. In this study, fine roots and ECM root tips were sampled down to 4-m depth during the digging of two independent pits differing by their water availability.
View Article and Find Full Text PDFArticle Synopsis
- The study focuses on root exploration in deeply weathered soils under Eucalyptus plantations, highlighting how these fast-growing trees use extensive root systems to tap into resources from deep soil layers.
- Fine roots were observed reaching depths of up to 10 meters, with significant root activity noted as early as one year after planting, indicating rapid soil exploration and resource uptake.
- The research suggests that effective soil exploration by Eucalyptus roots can prevent water and nutrient loss, enhancing the trees’ overall productivity and environmental sustainability.