Neighboring Plants Alleviate Aluminum Toxicity on The External Hyphae of Gigaspora margarita  

Oleh:

Rohyadi, Agus

Jenis: Article from Journal - ilmiah nasional - terakreditasi DIKTI
Dalam koleksi: Microbiology Indonesia vol. 3 no. 1 (Apr. 2009), page 42-46.
Topik: Aluminum; Cowpea; External Hyphae; Compartmentalized Pot System; Gigaspora margarita

Ketersediaan

Perpustakaan Pusat (Semanggi) Nomor Panggil: MM78.2 Non-tandon: 1 (dapat dipinjam: 0) Tandon: tidak ada

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Excessive soluble aluminum (Al3+) in acidic soils is toxic to the external hyphae of arbuscular mycorrhizal fungi but it can be alleviated by other soil factors. A glasshouse experiment was conducted to study the effect of increased Al3+ concentration on the growth of the external hyphae of Gigaspora margarita in the presence of other plants near the host plants. The experiment used compartmentalized pots to facilitate the growth of mycorrhizal-inoculated host plants, external hyphae of the fungus and not mycorhizal-inoculated neighbroing plants in different compartments; and measuring the effects of Al3+ and of the neighboring plants on the growth of the fungal hyphae independently. Increased concentration of Al3+ in soil affected the growth of external hyphae of G. margarita negatively. However, hte hyphal length density of the fungus was much higher in the pots with neighboring plants than that in the other ones, despite the Al toxicity. This indicates that the hyphae could be taken away from the toxic effect of Al3+ by the stimualting growth from roots of the neighboring plants.

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