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Chemical composition of the resting spore wall of plasmodiophora brassicae


, : Chemical composition of the resting spore wall of plasmodiophora brassicae. Transactions of the British Mycological Society 80(2): 297-304

Walls of the resting spores of P. brassicae [from root galls of rape Brassica napus ssp. rapifera] were isolated mechanically and analyzed quantitatively for their major components. At least 88% of the spore wall dry weight was accounted for and comprised 25.1% chitin, .gtoreq. 2.5% other carbohydrates, 33.6% protein and .gtoreq. 17.5% lipid while residual ash was equivalent to 10.5% of the total weight; chitosan and cellulose were absent from the walls. The significance of the abnormally high levels of protein and lipid is discussed.

Accession: 004937154

DOI: 10.1016/s0007-1536(83)80013-8

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Related references

Buczacki S.T.; Moxham S.E., 1983: Structure of the resting spore wall of plasmodiophora brassicae revealed by electron microscopy and chemical digestion. Resting spores of P. brassicae were treated with pronase, chitinase, lipase or phospholipases, either singly, sequentially or following prolonged pretreatment with 5% KOH. After each treatment spores were examined by transmission and scanning elec...

Moxham, S.E.; Buczacki, S.T., 1983: Chemical composition of the testing spore wall of Plasmodiophora brassicae. Walls of the resting spores isolated mechanically from homogenized root galls of rape were quantitatively analysed for their major components. At least 88% of the spore wall dry wt. was accounted for and shown to comprise 25.1% chitin, more than o...

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