Seed germination is strictly defined as the physiological events before radicle
protrusion through the endosperm cap, the endosperm region adjacent to the radicle tip.
There are two opposing forces governing seed germination: the growth potential of the
embryo and the mechanical resistance of the endosperm cap. The endosperm cap cell...
Tomato is considered to be one of the most important vegetables for its value as a source
of nutrients and antioxidants, and as a model crop for biological research, including seed
biology. In this thesis, tissue-specific gene expression and its regulation in tomato seeds
were analyzed to understand the mechanisms...
In mature Arabidopsis seeds, the testa (seed coat) is no longer a living tissue. Thus,
major sites of gene expression in imbibed seeds are the internal living tissues such
as the embryo and the endosperm. To elucidate the molecular mechanisms of seed
germination, the gene regulation in these two tissues...
Seed germination sensu stricto is defined as the physiological events before the radicle tip ruptures the covering tissues. The ability of the radicle to elongate (or germination potential) is observed in developing embryos prior to completion of seed maturation. When embryos at early developmental stages, such as globular, heart, torpedo...
Seed dormancy is defined as the inability of viable seeds to germinate under conditionsotherwise favorable for germination. Dormancy provides a strategy for seeds to germinateat an appropriate time. Abscisic acid (ABA) is a major hormone involved in the regulationof seed dormancy. To elucidate the molecular mechanisms of dormancy, the twoexperimental...
Seed dormancy has played a significant role in adaptation and evolution of seed
plants. While its biological significance is clear, molecular mechanisms underlying seed
dormancy induction, maintenance and alleviation still remain elusive. Intensive efforts
have been made to investigate gibberellin and abscisic acid metabolism in seeds, which
greatly contributed to...
True potato (Solanum tuberosum) seed (TPS) is used for preservation of variable genetic lines of wild and cultivated potatoes (Hawkes et al., 2000) and for propagation of food crops in some developing countries. TPS has advantages over seed potato tubers in storage and transportation and favors lower virus infection levels...
Rubus seed characteristics; seed coat morphology, anatomy, germination requirements and dormancy were studied in order to define protocols for breaking seed dormancy. Morphological analysis of the seed coat (testa) using scanning electron microscopy (SEM) included 56 seed accessions of 10 subgenera preserved in the collections of the US Department of...
The ability to correctly identify cultivars of commercially produced blackberry fruit is important to the industry. This manual gives growers and processors a first step in identifying blackberry cultivars by the seeds of their fruit. It includes 17 commercially grown blackberry cultivars.
Seeds provide food, feed, fiber and fuel. They are also an important delivery system of genetic information, which is essential for the survival of wild species in ecosystems and the production of agricultural crops. In this review, seed traits and genes that are potentially important for agricultural applications are discussed....