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Journal article
The metagenomics of soil bacteria and fungi and the release of mechanical dormancy in hard seeds.
Persistence in the soil is a function of seed physiology, particularly non-germination and inherent lifespan. However, for seeds with mechanical dormancy, non-germination is also a function of the composition and activity of the soil microbiota. We attempted to screen out microorganisms in the soil that can specifically and rapidly decompose... -
Journal article
Conserving useful plants for a sustainable future: species coverage, spatial distribution, and conservation status within the Millennium Seed Bank collection.
A substantially rich diversity of the world’s recorded useful plants (UPs) is captured within the Millennium Seed Bank collection hosted by the Royal Botanic Gardens, Kew, at Wakehurst, UK with 13,598 species (34%) belonging to 3696 genera and 325 families. This constitutes just over half of the total accessions and... -
Journal article
Intra-Specific Variation in Desiccation Tolerance of Citrus sinensis ‘bingtangcheng’ (L.) Seeds under Different Environmental Conditions in China.
Intra-specific variation in seed storage behaviour observed in several species has been related to different maternal environments. However, the particular environmental conditions and molecular processes involved in intra-specific variation of desiccation tolerance remain unclear. We chose Citrus sinensis ‘bingtangcheng’ for the present study due to its known variability in desiccation... -
Journal article
Seed Longevity—The Evolution of Knowledge and a Conceptual Framework.
The lifespan or longevity of a seed is the time period over which it can remain viable. Seed longevity is a complex trait and varies greatly between species and even seed lots of the same species. Our scientific understanding of seed longevity has advanced from anecdotal ‘Thumb Rules,’ to empirically...Nadarajan, Jayanthi ; Walters, Christina ; Pritchard, Hugh W. ; Ballesteros, Daniel ; Colville, Louise
Cryopreservation, Seed longevity, Glassy state, Cryobiotechnology, and Seed ageing
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Journal article
Seed dormancy concepts in orchids: Dendrobium cruentum as a model species.
Generally, orchids produce dust-like seeds in which endosperm reduction and embryo undifferentiation represent a derived state shared with species in about 11 other plant families. Orchid seeds are proposed to have a special kind of morphological or morphophysiological dormancy. We test this proposition, overcoming several design limitations of earlier studies,...Prasongsom, Sasikarn ; Thammasiri, Kanchit ; Pritchard, Hugh W.
Embryo volume, Dendrobium, Temperature, Germination, Nitrate, DUST seeds, Dormancy, and Dendrobium orchid
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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... -
Journal article
Comparative changes in sugars and lipids show evidence of a critical node for regeneration in safflower seeds during aging.
During seed aging, there is a critical node (CN) where the population viability drops sharply. Exploring the specific locations of the CN in different species of plants is crucial for understanding the biological storage properties of seeds and refining seed life span management. Safflower, a bulk oil crop that relies...Zhou, Lanyu ; Lu, Lijie ; Chen, Chao ; Zhou, Tao ; Wu, Qinghua …
Critical node, Safflower seeds, Carthamus tinctorius, Controlled deterioration treatment (CDT), Sugar, Regeneration, and Lipid
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Journal article
Mechanistic insights derived from re-establishment of desiccation tolerance in germinating xerophytic seeds: Caragana korshinskii as an example.
Germplasm conservation strongly depends on the desiccation tolerance (DT) of seeds. Xerophytic seeds have strong desiccation resistance, which makes them excellent models to study DT. Although some experimental strategies have been applied previously, most methods are difficult to apply to xerophytic seeds. In this review, we attempted to synthesize current...Peng, Long ; Huang, Xu ; Qi, Manyao ; Pritchard, Hugh W. ; Xue, Hua
Xerophytic woody species, Desiccation tolerance, Caragana korshinskii, Germplasm conservation, and Seed