Abstract
Stigmatic papillae develop at the apex of the gynoecium and play an important role as a site of pollination. The papillae in Brassicaceae are of the dry and unicellular type, and more than 15,000 genes are expressed in the papillae; however, the molecular and physiological mechanisms of their development remain unknown. We found that the papillae in Arabidopsis thaliana change their length in response to altered ambient humidity: papillae of flowers incubated under high humidity elongated more than those under normal humidity conditions. Genetic analysis and transcriptome data suggest that an abscisic acid-mediated abiotic stress response mechanism regulates papilla length. Our data suggest a flexible regulation of papilla elongation at the post-anthesis stage, in response to abiotic stress, as an adaptation to environmental conditions.
Original language | English |
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Pages (from-to) | 209-220 |
Number of pages | 12 |
Journal | Genes and Genetic Systems |
Volume | 93 |
Issue number | 5 |
DOIs | |
Publication status | Published - 2018 |
Externally published | Yes |
Keywords
- Abscisic acid
- Arabidopsis thaliana
- Humidity
- Stigmatic papillae
ASJC Scopus subject areas
- Molecular Biology
- Genetics