Identification of [Arg7] corazonin in the silkworm, Bombyx mori and the cricket, Gryllus bimaculatus, as a factor inducing dark color in an albino strain of the locust, Locusta migratoria
Identification of [Arg7] corazonin in the silkworm, Bombyx mori and the cricket, Gryllus bimaculatus, as a factor inducing dark color in an albino strain of the locust, Locusta migratoria
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DOI：
10.1016/s0022-1910(99)00173-0
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发表时间：
2000-06
影响因子：
2.2
通讯作者：
Y. Hua;J. Ishibashi;H. Saito;A. I. Tawfik;M. Sakakibara;Yoshiaki Tanaka;R. Derua;E. Waelkens;G. Baggerman;A. Loof;L. Schoofs;S. Tanaka
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文献类型：
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作者：
Y. Hua;J. Ishibashi;H. Saito;A. I. Tawfik;M. Sakakibara;Yoshiaki Tanaka;R. Derua;E. Waelkens;G. Baggerman;A. Loof;L. Schoofs;S. Tanaka
从家蚕幼虫脑和蟋蟀成虫心体（CC）中分别分离出引起飞蝗（Locustamigratoria）白化病幼虫体色变深的神经肽，并对其氨基酸序列进行了鉴定。从两种不同物种中分离出的两种肽与[Arg7] corazonin相同，这是一种已知存在于蟑螂和其他动物中的神经肽。该肽在L.白化病菌中诱导深色。在fmol水平下，高剂量（≥100 pmol）可使白化病蝗完全变黑，但对B的体色和变态均无影响。mori和G.双斑的因此，[Arg7] corazonin在家蚕和蟋蟀中的生理功能尚不清楚。本研究证实了L.白化病株的有效性。mirgatoria作为该肽的特异性生物测定系统。
The neuropeptides inducing dark color in albino nymphs of the migratory locust Locusta migratoria were isolated from the larval brain of the silkworm, Bombyx mori and from the adult corpora cardiaca (CC) of the cricket Gryllus bimaculatus, respectively, and their amino acid sequences identified. The two peptides isolated from the two different species are identical to [Arg7] corazonin, a neuropeptide known to be present in a cockroach and others. This peptide induces a dark color in albino nymphs of L. migratoria at fmol levels, and a high dose of ≥100 pmol caused albino locusts to turn completely black, but it influenced neither body color nor metamorphosis in B. mori and G. bimaculatus. Therefore, the physiological functions of [Arg7] corazonin in the silkworm and the cricket remain unknown. The present study demonstrated the usefulness of the albino strain of L. mirgatoria as a specific bioassay system for this peptide.