Pollen germination and tube growth: dependent on carbon dioxide and independent of ethylene

Journal Article · Fri Dec 31 23:00:00 EST 1971 · Plant Physiol.; (United States)

DOI:https://doi.org/10.1104/pp.49.6.963· OSTI ID:6474497

Sfakiotakis, E M; Simons, D H; Dilley, D R

The influence of ethylene and CO/sub 2/ on pollen germination and tube growth was investigated employing ventilated culture systems. Ethylene had no effect on pollen germinability or tube growth. Germinating pollen did not produce a detectable amount of ethylene (less than 0.1 nl/g x hr). Supplementing the cultures with CO/sub 2/ caused a marked increase in germination and tube growth. The half-maximal response for germination was less than 0.5%. CO/sub 2/ levels ranging from 1.08 to 2.22% were found in the internal cavity of lily styles. CO/sub 2/ derived from stylar metabolism may, therefore, modulate pollen tube growth thus integrating the events leading to fertilization.

• Research Organization: Michigan State Univ., East Lansing
• OSTI ID: 6474497
• Journal Information: Plant Physiol.; (United States), Journal Name: Plant Physiol.; (United States) Vol. 49; ISSN PLPHA
• Country of Publication: United States
• Language: English

Related Subjects

560303* -- Chemicals Metabolism & Toxicology-- Plants-- (-1987)
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
AIR POLLUTION
BIOLOGICAL EFFECTS
CARBON COMPOUNDS
CARBON DIOXIDE
CARBON OXIDES
CHALCOGENIDES
FLOWERS
GAMETES
GERM CELLS
GERMINATION
OXIDES
OXYGEN COMPOUNDS
PLANTS
POLLEN
POLLUTION
STIMULATION