C: N: P stoichiometry and specific growth rate of clover colonized by arbuscular mycorrhizal fungi

Abstract

Ecological stoichiometry has been widely applied in aquatic ecosystems, but has limited implications in terrestrial ecosystems. The pot experiments with Trifolium repens L. were conducted to demonstrate the relations between C: N: P, biological components and growth rate of clover colonized by arbuscular mycorrhizal (AM) fungi. The results showed that for mycorrhizal clover, N, P concentrations increased with increasing growth rate, in support of the Growth Rate Hypothesis (GRH). Mycorrhizal clover had higher P and RNA concentrations than non-mycorrhizal clover, indicating that the increase in P concentration would invest more RNA to meet the synthesis of protein. Results also indicated that the increase in N concentration with rapid growth rate may be attributed to the increase in the concentration of protein N. Underlying mechanisms driving the association of C: N: P with growth rate for symbiotic partners should help elucidate the allocation of major nutrients to cellular organs and trophic dynamics in terrestrial ecosystems.

Mycorrhizal fungi inoculation and phosphorus fertilizer on growth, essential oil production and nutrient uptake in peppermint (Mentha piperita L.)

“…In contrast, our results did not agree with those reported by Chen et al (2010) and Freitas et al (2006), who showed that mycorrhizal plants increased N content in the shoot.…”

“…Ca content was higher in inoculated plants compared to non-inoculated ones. Marschner & Dell (1994) determined that AMF could be responsible for mineral absorption of about 80% of P and 10% of K. Our findings indicated that AMF colonization had a beneficial effect on plant growth and P, Ca and K absorption, in concordance with Chen et al (2010) and Freitas et al (2006).…”

“…This association allows plants to explore larger volumes of soil, expanding the area of root absorption, increasing the area of contact with the soil, favoring the absorption of water and nutrients, especially P, and stimulating plant growth (Bressan et al, 2001;Gupta et al, 2002). The responses of the mycorrhizal plants related to P concentration in the soil vary with the species and the genotypes (Clement & Habte, 1995).…”

Identification of arbuscular mycorrhiza-inducible Nitrate Transporter 1/Peptide Transporter Family (NPF) genes in rice

“…On the other hand, the stoichiometry in the soil environment of required nutrients (i.e. C, N and P) also influence the benefit from arbuscular mycorrhizas (Chen et al 2010;Johnson 2010). In the experiments reported here, the nutrient solution composition influenced the AM colonization rates and AM plant growth.…”

Conformance Test of Association Among Several Arbuscular Mycorrhizal (AM) to the Growth of Coffea Arabica (Coffeae arabica L.) Seedling

“…In several researches, AM can take nutrient from unreached area in the soil. It is caused by the external hyphae of AM is small in size and can take nutrients from micro pores of soil (Chen et al 2010). The information of association among plant root and AM is still limited, and recently the suitable AM inoculants to seedling of coffee Arabica, the more information of the association among AM and coffee plant is important to study this relationship.…”