REDUCED CELLULAR IMMUNE COMPETENCE OF A TEMPERATURE-SENSITIVE DOPA DECARBOXYLASE MUTANT STRAIN OF DROSOPHILA-MELANOGASTER AGAINST THE PARASITE LEPTOPILINA-BOULARDI

被引:46
作者
NAPPI, AJ [1 ]
CARTON, Y [1 ]
LI, J [1 ]
VASS, E [1 ]
机构
[1] CNRS, BIOL & GENET EVOLUT LAB, F-91190 GIF SUR YVETTE, FRANCE
来源
COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY B-BIOCHEMISTRY & MOLECULAR BIOLOGY | 1992年 / 101卷 / 03期
关键词
D O I
10.1016/0305-0491(92)90027-O
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
1. The melanotic encapsulation response made by larvae of a temperature-sensitive dopa decarboxylase (DDC) mutant strain of Drosophila against the parasitic wasp Leptopilina was severely compromised in hosts with reduced levels of DDC. 2. Dopa and 5,6-dihydroxyindole (DHI) were two hemolymph components identified in hosts exhibiting a melanotic encapsulation response. 3. This is the first study to implicate DDC in insect cellular immune responses, and to provide chemical evidence that the pigment formed during such responses is eumelanin derived from tyrosine.
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收藏
页码:453 / 460
页数:8
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