The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 25, 1995
Filed:
Jun. 14, 1990
Applicant:
Inventors:
Chaim Frenkel, North Brunswick, NJ (US);
Chee-Kok Chin, Spotswood, NJ (US);
Daphna Havkin-Frenkel, North Brunswick, NJ (US);
Assignee:
Rutgers, The State University of New Jersey, New Brunswick, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C12N / ; C12N / ;
U.S. Cl.
CPC ...
4352404 ; 43524046 ; 43524054 ;
Abstract
The invention provides a process for stimulating the multiplication, differentiation or somatic embryogenesis of higher plant cells in tissue culture by the addition to the culture medium an effective amount of extensin preparation derived from higher plant tissue. Also, provided are tissue cultures which have such stimulating amount of extensin present. Finally, provided by the invention is the sterile extensin preparation which has the stimulating activity, preferably the extensin used being pure or substantially pure.