US 5,328,689 A · Induction of settlement and metamorphosis in crassostrea virginica by melanin-synthesizing bacteria and ammonia, and metabolic products of said bacteria

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.

Claims3

Dependent claims

A cement produced by melanin-synthesizing bacteria of the genus Shewanella or Alteromonas comprising a polysaccharide adhesive viscous exopolymer (PAVE) recovered as a metabolic product of said bacteria.

Dependencies are inferred from the claim text.

Facts

Application

08/027,923Filed 8 Mar 1993 · continuation

Priority

30 Dec 1983

Granted

12 Jul 1994

Term ends

Not estimatedThe source records don’t support an estimate.

Classification7 codes

C12P 17/10
Preparation of heterocyclic carbon compounds with only O, N, S, Se or Te as ring hetero atoms: nitrogen as only ring hetero atom
C12N 1/205
Bacteria; Culture media therefor: bacterial isolates
C12P 1/04
Preparation of compounds or compositions, not provided for in groups C12P3/00 - C12P39/00, by using microorganisms or enzymes: by using bacteria
C12R 2001/01
Microorganisms ; Processes using microorganisms: bacteria or Actinomycetales ; using bacteria or Actinomycetales

Family

Serial567,023Parent of this continuation-in-part · filed 30 Dec 1983

Serial185,647Parent of this division · filed 25 Apr 1988

Serial716,026Parent of this continuation · filed 14 Jun 1991

US 5,047,344 AParent of this division

US 4,740,466 AParent of this continuation-in-part

US 5,328,689 AThis patent

From the US filing history. Foreign family members aren’t listed.

Induction of settlement and metamorphosis in crassostrea virginica by melanin-synthesizing bacteria and ammonia, and metabolic products of said bacteria

Life of this patent

Induction of settlement and metamorphosis in crassostrea virginica by melanin-synthesizing bacteria and ammonia, and metabolic products of said bacteria

Life of this patent

Abstract

Claims3