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Determination of ch...
Determination of chitin in fungi and mycorrhizal roots by an improved HPLC analysis of glucosamine
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- Ekblad, Alf, 1957- (författare)
- University of Umeå, Umeå, Sweden
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- Näsholm, Torgny (författare)
- Swedish University of Agricultural Sciences, Umeå, Sweden
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(creator_code:org_t)
- 1996
- 1996
- Engelska.
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Ingår i: Plant and Soil. - 0032-079X .- 1573-5036. ; 178:1, s. 29-35
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- A method to measure chitin content in fungi and ectomycorrhizal roots with high-performance liquid chromatography (HPLC) was developed. Measurements of fluorescence of 9-fluorenylmethylchloroformate (FMOC-CI) derivatives of glucosamine were made on acid hydrolysates of pure chitin, chitin-root mixtures and fungal-root mixtures. The method was applied on 5 isolates of ectomycorrhizal fungi, and ectomycorrhizal and non-mycorrhizal Pinus sylvestris roots. Interference from amino acids was removed by pre-treatment of samples with 0.2 N NaOH. This pre-treatment did not reduce the recovery of chitin, nor did plant material affect the recovery of chitin. The HPLC method was compared with a colorimetric chitin-method by measurements on root-fungal mixtures, with known fungal content. The HPLC method gave estimates of fungal biomass which were equal to the expected while the colorimetric method showed values significantly (p<0.001) lower than the expected. The present chitin method offers a sensitive and specific tool for the quantification of chitin in fungi and in ectomycorrhizal roots.
Ämnesord
- NATURVETENSKAP -- Biologi -- Botanik (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Botany (hsv//eng)
Nyckelord
- chitin
- ectomycorrhizal fungi
- glucosamine
- high-performance liquid chromatography
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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