Relationship of mycorrhizal symbiosis with nutrients of phosphorus, nitrogen and potassium, and soil enzymes in rhizosphere of Lonicera nummulariifolia in Chahartagh Ardal habitat

Mycorrhizal fungi are essential components of sustainable soil–plant systems and have a main role in sustainable forestry. The present study was carried out to investigate the evaluating status of mycorrhizal symbiosis, activities of acid and alkaline phosphatase and some nutrients (phosphorus, nitrogen and potassium) in rhizosphere of Lonicera nummulariifolia located in Chahartagh Ardal habitat in Chaharmahal va Bakhtiari Province. For this purpose, roots of five trees of L. nummulariifoli and soils around them were sampled in spring and autumn. The results showed that Lonicera is an incredible symbiosis since the percentage of colonization was 90.2 and 80.6 in spring and autumn, respectively. The activity of acid and alkaline phosphatase also was 240.59 and 392.85 in spring and 146.48 and 295 (ρNP) in autumn, respectively. All measured elements had higher values in spring than autumn. Correlation was significant between soil phosphatases with total nitrogen and organic matter in spring and alkaline phosphatase with total nitrogen in autumn. High level of AMF colonization and acid phosphatase activity in spring may be due to good conditions of soil and growing of root hairs are in the early growing season. With regard to the microbial origin of alkaline phosphatase, increasing this enzyme in spring illustrated increasing the quality and quantity of microorganisms and mineralization of organic matter and rising nutrients. In general, impressive percentage of mycorrhizal colonization in L. nummulariifolia indicates dependency of this species to mycorrhizal symbiosis. Therefore, the role of these fungi in planting with this species, especially in destruction habitats, is vital.