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Photoperiod throughout the maternal life cycle, not photoperiod during seed imbibition, influences germination in Arabidopsis thaliana.

Publication ,  Journal Article
Imaizumi, T; Auge, G; Donohue, K
Published in: American journal of botany
April 2017

Plants adjust their phenology in response to seasonal cues experienced both by their parents and by themselves, and coordinating responses to these cues is necessary for expressing adaptive phenology. We investigated how cues are integrated across time to influence an important progeny phenotype, i.e., seed germination.We used Arabidopsis thaliana to investigate how the photoperiod experienced by maternal parents and by progeny influences seed germination. We examined when maternal photoperiod effects on germination are imposed and how long they persist in progeny.The photoperiod experienced by maternal plants more strongly influenced germination than the photoperiod experienced during seed imbibition. In addition, the photoperiod experienced at the prereproductive stage frequently influenced germination as strongly as that experienced during reproduction. In general, seeds from plants grown under short days had higher seed germination percentages than seeds from plants grown in longer days. These maternal effects diminished with after-ripening, but reappeared in seeds induced into secondary dormancy.We found no evidence that the effect of photoperiod systematically attenuates in proportion to the time that elapsed between the cue and the timing of seed germination. Moreover, more recently experienced cues did not override the effects of cues experienced previously. Instead, specific sequences of photoperiods experienced at the prereproductive and reproductive stages appear to influence germination behavior.

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Published In

American journal of botany

DOI

EISSN

1537-2197

ISSN

1537-2197

Publication Date

April 2017

Volume

104

Issue

4

Start / End Page

516 / 526

Related Subject Headings

  • Seeds
  • Reproduction
  • Plant Dormancy
  • Photoperiod
  • Germination
  • Evolutionary Biology
  • Arabidopsis
  • 3108 Plant biology
  • 3104 Evolutionary biology
  • 3103 Ecology
 

Citation

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Imaizumi, T., Auge, G., & Donohue, K. (2017). Photoperiod throughout the maternal life cycle, not photoperiod during seed imbibition, influences germination in Arabidopsis thaliana. American Journal of Botany, 104(4), 516–526. https://doi.org/10.3732/ajb.1600389
Imaizumi, Toshiyuki, Gabriela Auge, and Kathleen Donohue. “Photoperiod throughout the maternal life cycle, not photoperiod during seed imbibition, influences germination in Arabidopsis thaliana.American Journal of Botany 104, no. 4 (April 2017): 516–26. https://doi.org/10.3732/ajb.1600389.
Imaizumi, Toshiyuki, et al. “Photoperiod throughout the maternal life cycle, not photoperiod during seed imbibition, influences germination in Arabidopsis thaliana.American Journal of Botany, vol. 104, no. 4, Apr. 2017, pp. 516–26. Epmc, doi:10.3732/ajb.1600389.

Published In

American journal of botany

DOI

EISSN

1537-2197

ISSN

1537-2197

Publication Date

April 2017

Volume

104

Issue

4

Start / End Page

516 / 526

Related Subject Headings

  • Seeds
  • Reproduction
  • Plant Dormancy
  • Photoperiod
  • Germination
  • Evolutionary Biology
  • Arabidopsis
  • 3108 Plant biology
  • 3104 Evolutionary biology
  • 3103 Ecology