期刊
JOURNAL OF APPLIED PHYCOLOGY
卷 27, 期 5, 页码 2149-2156出版社
SPRINGER
DOI: 10.1007/s10811-015-0527-3
关键词
Pyropia yezoensis; Pythium porphyrae; Resistance strain; Red rot disease; Chemical composition
资金
- Priority Research Centers Program through the National Research Foundation of Korea (NRF) - Ministry of Education, Science and Technology [2009-0093828]
- NFRDI [RP-2014-AQ-061]
The biochemical profile of the Pyropia yezoensis-AP1 strain, a strain which shows resistance to red rot disease, was compared with that of a normal P. yezoensis cultivar. Levels of chlorophyll a, phycoerythrin, and phycocyanin were higher in P. yezoensis-AP1 than those in the normal P. yezoensis cultivar. Two-dimensional electrophoresis found a total of 132 and 128 distinct spots for total protein samples of P. yezoensis-AP1 and P. yezoensis, respectively. About 89.6 % of the total components were common to both P. yezoensis-AP1 and P. yezoensis, and 10.4 % were more abundant in the P. yezoensis-AP1 than P. yezoensis. The amount of total free amino acid in P. yezoensis-AP1 was less than that in the P. yezoensis cultivar, but taurine, glutamic acid, citrulline, and arginine content were higher in the P. yezoensis-AP1 strain. The porphyran content of P. yezoensis-AP1 (11.9 +/- 0.5 % dry weight) was higher than that of P. yezoensis cultivar (9.5 +/- 0.4 % dry weight). In the porphyran fraction, the content of 3,6-anhydro-L-galactose was higher in P. yezoensis-AP1 than P. yezoensis, and sulfate content was higher in the P. yezoensis cultivar than P. yezoensis-AP1. The results indicate that the difference of chemical composition between P. yezoensis-AP1 and P. yezoensis cultivar helps to explain the increased resistance to red rot disease in the AP1 strain. This finding provides a good starting point for the development of more resistant strains of P. yezoensis that will reduce the incidence of red rot disease on Pyropia farms.
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