ArticleAnnals of botany2010
Hourglass cell development in the soybean seed coat.
Article in Annals of botany, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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Who cites it
7 citing papers in PubMed, 19 citations in OpenAlex.
- Dissecting the cellular architecture and genetic circuitry of the soybean seed.Proceedings of the National Academy of Sciences of the United States of America · 2025Article
- High-Resolution X-ray Phase-Contrast Imaging and Sensory and Rheometer Tests in Cooked Edamame.Foods (Basel, Switzerland) · 2022Article
- Anatomy and Histochemistry of Seed Coat Development of Wild (International journal of molecular sciences · 2021Article
- The role of the testa during development and in establishment of dormancy of the legume seed.Frontiers in plant science · 2014Review
- Expression of polyhydroxybutyric acid as a model for metabolic engineering of soybean seed coats.Transgenic research · 2012Article
- Soybean peroxidase propeptides are functional signal peptides and increase the yield of a foreign protein.Plant cell reports · 2010Article
- Hourglass cell development in the soybean seed coat.Annals of botany · 2010Article
Corrections and comments
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Authors and funding
6 authors at 3 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
BACKGROUND AND
aimsHourglass cells (HGCs) are prominent cells in the soybean seed coat, and have potential use as 'phytofactories' to produce specific proteins of interest. Previous studies have shown that HGCs initiate differentiation at about 9 d post-anthesis (dpa), assuming their characteristic morphology by 18 dpa. This study aims to document the structural changes in HGCs during this critical period, and to relate these changes to the concurrent development of a specific soybean peroxidase (SBP) encoded by the Ep gene.
methodsPods were collected from plants at specific growth stages. Fresh material was processed for analysis of Ep peroxidase activity. Tissues were processed for scanning and transmission electron microscopy, as well as extracted for western blotting. A null variety lacking expression of Ep peroxidase was grown as a control. KEY RESULTS AND
conclusionsAt 9 dpa, HGCs are typical undifferentiated plant cells, but from 12-18 dpa they undergo rapid changes in their internal and external structure. By 18 dpa, they have assumed the characteristic hourglass shape with thick cell walls, intercellular air spaces and large central vacuoles. By 45 dpa, all organelles in HGCs have been degraded. Additional observations indicate that plasmodesmata connect all cell types. SBP activity and SBP protein are detectable in the HGC before they are fully differentiated (approx. 18 dpa). In very early stages, SBP activity appears localized in a vacuole as previously predicted. These results increase our understanding of the structure and development of the HGC and will be valuable for future studies aimed at protein targeting to components of the HGC endomembrane systems.
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