Induction of settlement and metamorphosis in Crassostrea virgini

Details Induction of settlement and metamorphosis in Crassostrea virgini Induction of settlement and metamorphosis in Crassostrea virgini

1988-04-25

1991-09-10

Schain, Howard E.

Chemistry: molecular biology and microbiology

Micro-organism, per se ; compositions thereof; proces of...

Bacteria or actinomycetales; media therefor

424 93, 119 4, A01K 6100, C12N 100, C12P 104, C12P 1322

Patent

active

050473441

ABSTRACT:
The present invention relates to the discovery of a new bacteria of the genus Alteromonas which has been found to attract oyster larvae by the production of compounds involved in melanin synthesis. More specifically, the present invention contemplates a method for inducing the settlement and metamorphosis of Crassostrea virginica larvae by induction with certain metabolic substances produced by the present bacteria and its altered variants. Furthermore, the present invention is directed to other and derivative metabolic products which can be employed for their desired utility and application. In accordance with the present invention, it has been discovered that ammonia (NH.sub.3) initiates settlement and metamorphosis of the oyster larvae in the same manner as the natural phenomena.

REFERENCES:
patent: 4348983 (1982-09-01), Cooper
patent: 4532883 (1985-08-01), Lockwood et al.
Ivins et al., Inf. and Immunitiy, vol. 27, No. 3, Mar. 1980, pp. 721-729.

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