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The evolution of seeds was a major reason for the rise of angiosperms to ecological dominance. Seeds of angiosperms are composed of three main structures: the embryo, which will give rise to the next generation; the endosperm, a nurturing tissue whose main function is to deliver nutrients from the mother plant to the embryo; and the seed coat (or testa), a tissue that is derived from the maternal integuments and which provides support and protection to the growing embryo. All three seed components need to exchange signals to ensure co-ordinated growth and development. The present review discusses the structure of the seed coat, its interaction with the endosperm, and bidirectional signalling events between endosperm and seed coat that co-ordinate growth of both tissues. Angiosperm seeds are not only of evolutionary significance, but also of major agronomic importance, demanding a thorough understanding of the events governing seed growth and development.
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http://dx.doi.org/10.1042/BST20130221 | DOI Listing |
PLoS One
September 2025
Satellite Collections North, Genebank Department, Leibniz Institute of Plant Genetics and Crop Plant Research (IPK), Malchow/Poel, Germany.
Treatment of seeds with cold atmospheric pressure plasma (CAPP) is in its proof-of-concept phase with regard to its effect on germination and plant growth. To increase the germination of hardseeded red clover (Trifolium pratense L.), seeds are usually scarified, which is time-consuming and labour-intensive.
View Article and Find Full Text PDFFront Plant Sci
September 2025
College of Life Sciences, Engineering Research Center for High-Valued Utilization of Fruit Resources in Western China of Ministry of Education, Shaanxi Normal University, Xi'an, China.
Plant seeds have evolved diverse dormancy types and regulatory mechanisms to adapt to environmental conditions and seasonal changes. As a commonly used rootstock for cultivated pears, faces challenges in seedling production and large-scale cultivation due to limited understanding of seed dormancy mechanisms. In this study, we report that seeds exhibit non-deep physiological dormancy, with seed coats playing a pivotal regulatory role.
View Article and Find Full Text PDFPlant Physiol Biochem
September 2025
Co-Innovation Center for Sustainable Forestry in Southern China, College of Forestry and Grassland, Nanjing Forestry University, Nanjing, 210037, China. Electronic address:
Seeds of Sophora japonica in Nanjing during the recommended period typically exhibit permeable seed coats. It is imperative to comprehend the water absorption characteristics of the permeable seeds, as water uptake represents a critical step in seed germination. This study employed an integrated approach combining blocking experiments, scanning electron microscopy, staining tests, and magnetic resonance imaging to investigate water entry sites and movement patterns in permeable seeds.
View Article and Find Full Text PDFJ Agric Food Chem
September 2025
School of Food Science & Nutrition, University of Leeds, Leeds LS2 9JT, U.K.
This study evaluated the nutritional and antinutritional (ANFs) composition and protein profiles of different components of Ramon () seed, including the seed coat, fruit, and both roasted and green (unprocessed) seeds. Proximate composition, mineral content, ANFs quantification, amino acid profile, protein digestibility, SDS-PAGE, proteomics, and gluten ELISA were performed. Protein contents ranged from 9.
View Article and Find Full Text PDFFront Plant Sci
August 2025
London Research and Development Centre, Agriculture and Agri-Food Canada, London, ON, Canada.
Many market classes of common beans () have a significant reduction in crop value due to the postharvest darkening of the seed coat. Seed coat darkening is caused by an elevated accumulation and oxidation of proanthocyanidins (PAs). In common bean, the major color gene encodes for a bHLH protein with its allele controlling the postharvest slow darkening seed coat trait.
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