Abstract
ABSTRACT Evidence of arbuscular mycorrhizal fungal colonization of mat litter in various ecosystems plus previous reports of external mycelium of those fungi and mycorrhizal roots in litter from coffee plants and shade trees on coffee plantations suggest that they have a relationship with closed direct nutrient cycling between organic matter and living roots. This relationship was first proposed more than 50 years ago. Mycorrhizal symbiosis in tropical crops is affected by agricultural management practices. This study aimed to assess the [...]
Highlights
Arbuscular mycorrhizal fungi colonize leaf litter across a wide range of natural ecosystems and seem to have a key role in the decomposition of organic matter and subsequent transference of nutrients to plants (Bunn et al, 2019)
Since there have only been a few studies documenting arbuscular mycorrhizal fungal (AMF) colonization of leaf litter, and it has been proposed to evaluate it in different types of ecosystems (Bunn et al, 2019), new research on those systems with significant amounts of mulch and high rates of nutrient losses could improve our understanding of nutrient cycling in key terrestrial ecosystems
Organic treatment contained a greater number of different tree species than chemical inputs (CH) and organic and chemical management (ORCH)
Summary
Arbuscular mycorrhizal fungi colonize leaf litter across a wide range of natural ecosystems and seem to have a key role in the decomposition of organic matter and subsequent transference of nutrients to plants (Bunn et al, 2019). Several reports about arbuscular mycorrhizal fungi in seeds, arthropod skeletons, and decomposing leaves have been published (Pirozynski and Dalpé, 1989; Rivera and Guerrero, 1998; Aristizábal et al, 2004; Posada et al, 2012) These fungi can minimize losses of mineralized nutrients via lixiviation, leaching, or chemical fixation to soil components since these nutrients are directly transported from the colonized leaf litter to the host plant’s roots (Rivera and Guerrero et al, 1998). Since there have only been a few studies documenting arbuscular mycorrhizal fungal (AMF) colonization of leaf litter, and it has been proposed to evaluate it in different types of ecosystems (Bunn et al, 2019), new research on those systems with significant amounts of mulch and high rates of nutrient losses could improve our understanding of nutrient cycling in key terrestrial ecosystems
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