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2022
Journal article
(Epi)genetic control of secondary seed dormancy depth and germination in Capsella bursa-pastoris.
Despite the importance of secondary dormancy for plant life cycle timing and survival, there is insufficient knowledge about the (epigenetic) regulation of this trait at the molecular level. Our aim was to determine the role of (epi)genetic processes in the regulation of secondary seed dormancy using natural genotypes of the... -
2022
Journal article
Stimulatory and inhibitory effects of light on Cereus repandus (Cactaceae) seed germination are strongly dependent on spectral quality.
In small seeds, light often promotes germination and longer-term exposure to darkness reduces light sensitivity. In cacti inhabiting harsh environments, a rapid response to light exposure is potentially advantageous for seedling establishment. We exposed dark-imbibed seeds of the cactus to doses of red (RED) light and far-red (FR) light. The...Yang, X-Y. ; Pritchard, Hugh W.
Seed traits, Cereus repandus, R–FR light reversibility, Dark-induced dormancy, Light dose, Neglected and underutilized species, and Seed germination
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2020
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2020
Journal article
Dry architecture: towards the understanding of the variation of longevity in desiccation-tolerant germplasm
Desiccation-tolerant (DT) plant germplasm (i.e. seeds, pollen and spores) survive drying to low moisture contents, when cytoplasm solidifies, forming a glass, and chemical reactions are slowed. DT germplasm may survive for long periods in this state, though inter-specific and intra-specific variation occurs and is not currently explained. Such variability has...Ballesteros, Daniel ; Pritchard, Hugh W. ; Walters, Christina
solidified cytoplasm, seeds, oxidative stress, photosynthetic stress, spores, and lipid crystallization