Title |
Petiole hyponasty: an ethylene-driven, adaptive response to changes in the environment
|
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Published in |
AoB Plants, December 2011
|
DOI | 10.1093/aobpla/plr031 |
Pubmed ID | |
Authors |
Joanna K. Polko, Laurentius A. C. J. Voesenek, Anton J. M. Peeters, Ronald Pierik |
Abstract |
Many plant species can actively reorient their organs in response to dynamic environmental conditions. Organ movement can be an integral part of plant development or can occur in response to unfavourable external circumstances. These active reactions take place with or without a directional stimulus and can be driven either by changes in turgor pressure or by asymmetric growth. Petiole hyponasty is upward movement driven by a higher rate of cell expansion on the lower (abaxial) compared with the upper (adaxial) side. Hyponasty is common among rosette species facing environmental stresses such as flooding, proximity of neighbours or elevated ambient temperature. The complex regulatory mechanism of hyponasty involves activation of pathways at molecular and developmental levels, with ethylene playing a crucial role. |
X Demographics
Geographical breakdown
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Demographic breakdown
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Scientists | 1 | 50% |
Mendeley readers
Geographical breakdown
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Brazil | 1 | 1% |
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Demographic breakdown
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Researcher | 13 | 14% |
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Student > Doctoral Student | 5 | 6% |
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Unknown | 16 | 18% |
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Medicine and Dentistry | 2 | 2% |
Other | 5 | 6% |
Unknown | 16 | 18% |