Skip to main content
OSTI.GOVU.S. Department of Energy Office of Scientific and Technical Information
U.S. Department of Energy
Office of Scientific and Technical Information
 

Effects of acidity on tree pollen germination and tube growth

Conference · · Proc., Annu. Meet., Air Pollut. Control Assoc.; (United States)
OSTI ID:5812324
; ;

Several studies have indicated that pollen germination and tube growth are adversely affected by air pollutants. Pollutants may inhibit the function of pollen by reducing the number of pollen grains which germinate, by reducing the maximum length to which the pollen tubes grow, or by interfering with the formation of the generative cell. The paper reports on studies that are attempting to determine the effects acid rain may have on these crucial stages in the life histories of northeastern tree species. The first stage of this work assessed the effects of acidity in the growth medium on in vitro pollen germination for four deciduous forest species common to central New York State, Betula lutea (yellow birch), B. lenta (black birch), Acer saccharum (sugar maple), and Cornus florida (flowering dogwood). Measurements were taken at the end of the growth period to determine the percentage of grains which had germinated, and to estimate the average tube length. To determine the effects of pollen on the growth medium, the pH of the germination drop was measured at the end of the growth period.

Research Organization:
Boyce Thompson Institute, Ithaca, NY 14853
OSTI ID:
5812324
Report Number(s):
CONF-850612-
Journal Information:
Proc., Annu. Meet., Air Pollut. Control Assoc.; (United States), Journal Name: Proc., Annu. Meet., Air Pollut. Control Assoc.; (United States) Vol. 1; ISSN PRAPA
Country of Publication:
United States
Language:
English

Similar Records

Effects of acidity on tree Pollen germination and tube growth. Final report
Technical Report · Wed Aug 01 00:00:00 EDT 1984 · OSTI ID:5024075
Effects of fluoride on pollen germination and pollen tube growth. [Tomatoes]
Journal Article · Thu Dec 31 23:00:00 EST 1970 · Phytopathology; (United States) · OSTI ID:5995356
Impatiens pollen germination and tube growth as a bioassay for toxic substances
Journal Article · Wed Dec 31 23:00:00 EST 1980 · Environ. Health Perspect.; (United States) · OSTI ID:6187831

Related Subjects

510200* -- Environment
Terrestrial-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
560303 -- Chemicals Metabolism & Toxicology-- Plants-- (-1987)
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
ACID RAIN
ATMOSPHERIC PRECIPITATIONS
BIOLOGICAL EFFECTS
BIRCHES
CHLOROSIS
DIMENSIONS
FEDERAL REGION II
GAMETES
GERM CELLS
GERMINATION
LENGTH
MAPLES
NEW YORK
NORTH AMERICA
PATHOLOGICAL CHANGES
PH VALUE
PLANTS
POLLEN
RAIN
RESEARCH PROGRAMS
TREES
TUBES
USA