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- Title
The (oxalato)aluminate complex as an antimicrobial substance protecting the “shiro” of Tricholoma matsutake from soil micro-organisms.
- Authors
Nishino, Katsutoshi; Shiro, Misao; Okura, Ryuki; Oizumi, Kazuya; Tanaka, Chihiro; Hirai, Nobuhiro; Fujita, Toru; Sasamori, Takahiro; Tokitoh, Norihiro; Yamada, Akiyoshi; Yamaguchi, Muneyoshi; Hiradate, Syuntaro
- Abstract
Tricholoma matsutake, a basidiomycete, forms ectomycorrhizas withPinus densifloraas the host tree. Its fruiting body, “matsutake” in Japanese, is an edible and highly prized mushroom, and it grows in a circle called a fairy ring. Beneath the fairy ring ofT. matsutake, a whitish mycelium-soil aggregated zone, called “shiro” in Japanese, develops. The front of the shiro, an active mycorrhizal zone, functions to gather nutrients from the soil and roots to nourish the fairy ring. Bacteria and sporulating fungi decrease from the shiro front, whereas they increase inside and outside the shiro front. Ohara demonstrated that the shiro front exhibited antimicrobial activity, but the antimicrobial substance has remained unidentified for 50 years. We have identified the antimicrobial substance as the (oxalato)aluminate complex, known as a reaction product of oxalic acid and aluminum phosphate to release soluble phosphorus. The complex protects the shiro from micro-organisms, and contributes to its development. “Antimicrobial activity of the matsutake shiro” for left figure.“The antimicrobial substance, the (oxalato)aluminate complex, from the matsutake shiro” for right figure.
- Subjects
ALUMINATES; TRICHOLOMA matsutake; ANTI-infective agents; GOVERNMENT policy
- Publication
Bioscience, Biotechnology & Biochemistry, 2017, Vol 81, Issue 1, p102
- ISSN
0916-8451
- Publication type
Article
- DOI
10.1080/09168451.2016.1238298