Effect of salinity on spore germination, hyphal length and root colonization of the Arbuscular Mycorrhizal Fungi

[摘要] Various environmental factors influence the growth and development of Arbuscular Mycorrhizal Fungi (AMF), one of which is salinity. Salinity can affect several stages of AMF growth. Theresearch aims to study the influence of salinity towards germination, growth, and performance of AMF, namely Gi. margarita and G. etunicatum. The level of salinity given ranges from 0 - 10,000 ppm with an interval of 2,000 ppm. Spore germination experiments were carried out in petri dish culture while evaluation was carried out in open pot culture with sorghum as host. The results showed that increasing salinity decreased the initial day of germination, the percentage of germination and hyphal growth. The effect is greater on Gi. margaritathanG. etunicatum on all parameters measured. An increase of salinity up to 10,000 ppm decreased the percentage of Gi. margarita root colonization by 69.07% and G. etunicatumby 37.78%. Nevertheless, the effect of salinity observed in this study towards germination and growth of AMF wasmore categorized as delaying rather than inhibiting or stopping.

[发布机构] Faculty of Forestry, Universitas Sumatera Utara, Kampus USU, Jalan Tri Dharma Ujung No.1, Padang Bulan, Medan, Indonesia^1

[效力级别] 生态环境科学

[关键词] Arbuscular mycorrhizal fungi;Environmental factors;Growth and development;Hyphal growth;Petri dish;Pot culture;Root colonization;Spore germination