Lichen mycobionts

Tanahashi T, Takenaka Y, Nagakura N, Hamada N, Miyawaki H (2000) Two Isocoumarins from the Cultured Lichen Mycobiont of Graphis sp. Heterocycles 53 723... 

The fungal metabolite, sclerotiorin (49) was first isolated independently by two groups from Penicillium sclerotiorum [94,95] and later from P. multicolor [95]. The 7-epimer (50) is also a known metabolite of P. hirayamae [96], Sclerotiorin was isolated for the first time from lichen mycobiont Pyrenula japonica [97]. The related rubrorotiorin (51) was also found in P. hirayamae [98]. 

Isol. from the cultured lichen mycobionts of Graphis scripta. Orange-yellow plates or columns (Mc2CO). Mp 163-165°. 

Intact lichen Mycobiont Lichen culture Literature... 

Hamada N, Ueno T (1987) Depside from an isolated lichen mycobiont. Agric Biol Chem 51 1705-1706... 

FahseltD (1994) Secondary biochemistry of lichens. Symbiosis 16 117-165 Fazio AT, Adler MT, Bertoni MD et al (2007) Lichen secondary metabolites from the cultured lichen mycobionts of Teloschistes chrysophthalmus and Ramalina celastri and their antiviral activities. Z Naturforsch C 62 543-549... 

The saprophyte, dependent on the previous presence of an autotroph, and the parasite, dependent on the immediate presence of an autotroph, are no less dependent than is the lichen mycobiont on the phycobiont. Both examples of association can be regarded as representing probable stages in the convergence of autotroph and heterotroph which led to the evolution of symbiotic systems. 

Chapter 5.4. Metabolites from Lichen Mycobionts. The volatile compounds (ca. 130) produced by a Nostoc species from a Collema lichen were separated and identified by GC-MS most abundant were cyclohexane and cyclopentane derivatives (Dembitsky VM, Shkrob I, Dor I (1999) Separation and Identification of Hydrocarbons and other Volatile Compounds from Cultured Blue-Green Alga Nostoc spec, by Gas Chromatography - Mass Spectrometry Using serially coupled Capillary Columns with consecutive Nonpolar and Semipolar Stationary Phases. J Chromatogr A 682 221). 

Hamada N (1989) The Effect of Various Culture Conditions on Depside Production by an Isolated Lichen Mycobiont. Bryologist 92 310... 

Kinoshita Y, Hayase S, Higuchi M, Yamamoto Y, Ahmadjian V, Yoshimura I, Yamada Y (1991) Improvement of Protoplast Isolation from Lichen Mycobionts. Agric Biol Chem 55 1891... 

Miyagawa H, Hamada N, Sato M, Ueno T (1993) Hypostrepsilic Acid, a New Dibenzofuran from the Cultured Lichen Mycobiont of Evernia esorediosa. Phytochemistry 34 589... 

Miyagawa H, Yamashita M, Ueno T, Hamada N (1997) Hypostrepsilalic Acid from a Cultured Lichen Mycobiont of Stereocaulon japonicum. Phytochemistry 46 ... 

Tanahashi T, Kuroishi M, Kuwahara A, Nagukura N, Hamada N (1997) Four Phenolics from the Cultured Lichen Mycobiont of Graphis scripta var. pulverulenla. Chem Pharm Bull 45 1183... 

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