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Journal article
Phylogenetic trends in TZ staining analysis of six deep dormancy seeds.
The assessment of seed quality and physiological potential is essential in seed production and crop breeding. In the process of rapid detection of seed viability using tetrazolium (TZ) staining, it is necessary to spend a lot of labour and material resources to explore the pretreatment and staining methods of hard...Peng, Chen Yin ; Wu, Yu ; Huang, Wen Hui ; Deng, Zhi Yun ; Sun, Xiao Rui …
Fat content, Endospermic seeds, Hard seed, Exalbuminous seeds, Physical dormancy, and Phylogenetic relationship
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Journal article
Seed science and banking networks for plant conservation: the role of the Royal Botanic Gardens, Kew.
Pritchard, Hugh W. ; Sacandé, Moctar ; Kranner, Ilse ; Seaton, Phil ; Ulian, Tiziana
Millennium Seed Bank Project, Plant conservation, Seed science, Seed banking, and Royal Botanic Gardens, Kew
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Journal article
Aging-Induced Reduction in Safflower Seed Germination via Impaired Energy Metabolism and Genetic Integrity Is Partially Restored by Sucrose and DA-6 Treatment.
Seed storage underpins global agriculture and the seed trade and revealing the mechanisms of seed aging is essential for enhancing seed longevity management. Safflower is a multipurpose oil crop, rich in unsaturated fatty acids that are at high risk of peroxidation as a contributory factor to seed aging. However, the... -
Journal article
Effects of H2SO4, GA3, and Cold Stratification on the Water Content, Coat Composition, and Dormancy Release of Tilia miqueliana Seeds.
Wu, Yu ; Huang, Wen Hui ; Peng, Chen Yin ; Shen, Yong Bao ; Visscher, Anne M. …
Dormancy release, Water gap and channels, Seed coat components, Mechanical properties, and H2SO4-GA3 treatment
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Journal article
Comparative Seed Cryopreservation of Indonesian and New Zealand Epiphytic And Terrestrial Orchids.
The atypical seed storage behaviour reported in several orchid species justifies cryopreservation as a complementary conservation strategy to conventional seed banking. This study aimed to assess the seed cryopreservation potential of five orchid species; tropical epiphytic, Indonesian species (Dendrobium strebloceras, D. lineale), one temperate New Zealand species (D. cunninghamii) and... -
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
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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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Journal article
Thermal buffering capacity of the germination phenotype across the environmental envelope of the Cactaceae.
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