Skip to main content
Journal cover image

Analysis of a chalcone synthase mutant in Ipomoea purpurea reveals a novel function for flavonoids: amelioration of heat stress.

Publication ,  Journal Article
Coberly, LC; Rausher, MD
Published in: Molecular ecology
May 2003

Flavonoids are thought to function in the plant stress response and male fertility in some, but not all, species. We examined the effects of a self-fertile chalcone synthase null allele, a, for the effects of heat and light stress on fertilization success and flower production in Ipomoea purpurea. Pollen recipients and pollen donors of both homozygous genotypes exhibit reduced fertilization success at high temperatures, indicating that high temperature acts as a stress-lowering fertilization success. Homozygous aa individuals exhibit reduced male and female fertilization success, compared to AA individuals, at high temperatures but not at low temperatures. In addition, aa individuals produce fewer flowers than AA individuals at low temperatures, but not at high temperatures. These results suggest that flavonoids alleviate heat stress on fertilization success. They also suggest that pleiotropic effects at the A locus may explain the low frequency of the a allele in natural populations.

Duke Scholars

Altmetric Attention Stats
Dimensions Citation Stats

Published In

Molecular ecology

DOI

EISSN

1365-294X

ISSN

0962-1083

Publication Date

May 2003

Volume

12

Issue

5

Start / End Page

1113 / 1124

Related Subject Headings

  • North Carolina
  • Ipomoea
  • Hot Temperature
  • Flowers
  • Flavanones
  • Fertilization
  • Evolutionary Biology
  • Biological Evolution
  • Alleles
  • Acyltransferases
 

Citation

APA
Chicago
ICMJE
MLA
NLM
Coberly, L. C., & Rausher, M. D. (2003). Analysis of a chalcone synthase mutant in Ipomoea purpurea reveals a novel function for flavonoids: amelioration of heat stress. Molecular Ecology, 12(5), 1113–1124. https://doi.org/10.1046/j.1365-294x.2003.01786.x
Coberly, L. C., and M. D. Rausher. “Analysis of a chalcone synthase mutant in Ipomoea purpurea reveals a novel function for flavonoids: amelioration of heat stress.Molecular Ecology 12, no. 5 (May 2003): 1113–24. https://doi.org/10.1046/j.1365-294x.2003.01786.x.
Coberly, L. C., and M. D. Rausher. “Analysis of a chalcone synthase mutant in Ipomoea purpurea reveals a novel function for flavonoids: amelioration of heat stress.Molecular Ecology, vol. 12, no. 5, May 2003, pp. 1113–24. Epmc, doi:10.1046/j.1365-294x.2003.01786.x.
Journal cover image

Published In

Molecular ecology

DOI

EISSN

1365-294X

ISSN

0962-1083

Publication Date

May 2003

Volume

12

Issue

5

Start / End Page

1113 / 1124

Related Subject Headings

  • North Carolina
  • Ipomoea
  • Hot Temperature
  • Flowers
  • Flavanones
  • Fertilization
  • Evolutionary Biology
  • Biological Evolution
  • Alleles
  • Acyltransferases