ISSN:
1399-3054
Source:
Blackwell Publishing Journal Backfiles 1879-2005
Topics:
Biology
Notes:
Soil drenches of 250, 500 or 1000 mg/l of the growth retardants AMO-1618 or B-995 effectively reduced dry matter production and stem elongation in young seedlings of Cupressus arizonica Greene. In seedlings treated with AMO-1618, the acidic, ethyl acetate-soluble gibberellin-like substances (GAs), as detected. by bioassay, were reduced to almost undetectable levels. However, the endogenous GA content in seedlings treated with B-995 were at least 11-fold greater than in control seedlings and differed as well in chromatographic characteristics, being of a more polar nature than the endogenous GAs of control seedlings. It was concluded that while AMO-1618 probably acts through interference with GA biosynthesis, B-995 may act through the interconversion of GAs.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1111/j.1399-3054.1975.tb03839.x
