Dynamic Phosphate Uptake in Arbuscular Mycorrhizal Roots Under Field Conditions

Abstract

Many crops are colonized with arbuscular mycorrhizal fungi (AMF), which can efficiently absorb nutrients such as phosphate from the soil. The utilization of mycorrhizal symbioses is one of the most promising options for developing resource-saving and sustainable agricultural systems. Most laboratory studies have illustrated the roles of AM symbiosis by inoculating plants with limited AMF isolates. In the field, however, the roots of crops are co-colonized with multiple AMF species, which are difficult to separate and identify and may have different abilities regarding phosphate uptake. In addition, it is difficult to understand which AMF are functional due to the dynamics of AMF colonization processes and the largely unknown genomic structure. This review summarizes key discoveries supporting the importance of the dynamics of AM colonization and genomic structure, which potentially influence the characteristics of AM phosphate uptake. Moreover, this review aims to identify the research direction necessary to obtain a better understanding of the phosphate uptake systems of crops in the field.

Microbial Communities Associated With Long-Term Tillage and Fertility Treatments in a Corn-Soybean Cropping System

“…On the other hand, CT soils had more homogenized P levels throughout the tilled layer. The low P availability to plant roots in NT systems might have promoted the establishment of symbiotic relationships including those with mycorrhizae fungi, especially that these fungi are known to efficiently absorb phosphates from the soil (Kobae, 2019). This is reflected in our data, where a higher prevalence of mycorrhizae fungi was associated with NT ( Figure 4A).…”

Yield increase of corn inoculated with a commercial arbuscular mycorrhizal inoculant in Brazil

“…It is also known that other practices and variables have direct effects on the performance of AMF in agricultural systems. Among them, variations in soil type, indigenous AMF community and diversity, environmental changes, crop species and cultivars, and cultivation management (VAn GEEL, 2016;HART et al, 2017;JACoBY et al, 2017;SAWERS et al, 2017;KOBAE, 2019).…”

Enhancing the Growth and Yield of Green Gram through Efficient Inoculation of AM Fungi and Rhizobium

“…Athar et al (2005) reported better nodulation and nitrogen fixation in legumes due to the phosphorus nutrition. Nitrogenase activity was enhanced due to the application of AM fungi was reported by Kobae (2019). By keeping the above points the present study was undertaken to evaluate the efficiency of tripartite association.…”