ArticlePlant physiology2001
Two tomato expansin genes show divergent expression and localization in embryos during seed development and germination.
Article in Plant physiology, 2001. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 41 papers.
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41 citing papers in PubMed, 146 citations in OpenAlex.
- Genome-wide analysis of sunflower (Helianthus annuus) and Orobanche cumana reveals HaEXLA2 and HaEXLB2 as negative regulators of lignin-based resistance.Plant cell reports · 2026Article
- The initiation of embryo growth in imbibed celery mericarps marks a key mechanism by which temperature signals are integrated to regulate germination timing.Journal of experimental botany · 2026Article
- A Novel Breeding Target for Salt-Tolerant Maize:Plants (Basel, Switzerland) · 2025Article
- Integrated Metabolome and Transcriptome Analysis of Gibberellins Mediated the Circadian Rhythm of Leaf Elongation by Regulating Lignin Synthesis in Maize.International journal of molecular sciences · 2024Article
- Genome-wide identification of the expansin gene family in netted melon and their transcriptional responses to fruit peel cracking.Frontiers in plant science · 2024Article
- Transcriptome- and genome-wide systematic identification of expansin gene family and their expression in tuberous root development and stress responses in sweetpotato (Frontiers in plant science · 2024Article
- Review
- Pleiotropy Structures Plant Height and Seed Weight Scaling in Barley despite Long History of Domestication and Breeding Selection.Plant phenomics (Washington, D.C.) · 2023Article
- Genome-wide identification, characterization of expansin gene family of banana and their expression pattern under various stresses.3 Biotech · 2022Article
- RNA-seq analysis reveals key genes associated with seed germination ofFrontiers in plant science · 2022Article
- Comparative genomic analysis of expansin superfamily gene members in zucchini and cucumber and their expression profiles under different abiotic stresses.Physiology and molecular biology of plants : an international journal of functional plant biology · 2021Article
- Genome-wide identification, characterization, and expression analysis of the expansin gene family in watermelon (3 Biotech · 2020Article
- Article
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- Regulation of α-expansins genes inPhysiology and molecular biology of plants : an international journal of functional plant biology · 2019Article
- Expansin genes expression in growing ovaries and grains of sunflower are tissue-specific and associate with final grain weight.BMC plant biology · 2018Article
- Quantitative analysis of the 3D cell shape changes driving soybean germination.Journal of experimental botany · 2017Article
- Transcript profiling for early stages during embryo development in Scots pine.BMC plant biology · 2016Article
- α-Xylosidase plays essential roles in xyloglucan remodelling, maintenance of cell wall integrity, and seed germination in Arabidopsis thaliana.Journal of experimental botany · 2016Article
- Engineering high Zn in tomato shoots through expression of AtHMA4 involves tissue-specific modification of endogenous genes.BMC genomics · 2016Article
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Authors and funding
3 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Expansins are plant proteins that can induce extension of isolated cell walls and are proposed to mediate cell expansion. Three expansin genes were expressed in germinating tomato (Lycopersicon esculentum Mill.) seeds, one of which (LeEXP4) was expressed specifically in the endosperm cap tissue enclosing the radicle tip. The other two genes (LeEXP8 and LeEXP10) were expressed in the embryo and are further characterized here. LeEXP8 mRNA was not detected in developing or mature seeds but accumulated specifically in the radicle cortex during and after germination. In contrast, LeEXP10 mRNA was abundant at an early stage of seed development corresponding to the period of rapid embryo expansion; it then decreased during seed maturation and increased again during germination. When gibberellin-deficient (gib-1) mutant seeds were imbibed in water, LeEXP8 mRNA was not detected, but a low level of LeEXP10 mRNA was present. Expression of both genes increased when gib-1 seeds were imbibed in gibberellin. Abscisic acid did not prevent the initial expression of LeEXP8 and LeEXP10, but mRNA abundance of both genes subsequently decreased during extended incubation. The initial increase in LeEXP8, but not LeEXP10, mRNA accumulation was blocked by low water potential, but LeEXP10 mRNA amounts fell after longer incubation. When seeds were transferred from abscisic acid or low water potential solutions to water, abundance of both LeEXP8 and LeEXP10 mRNAs increased in association with germination. The tissue localization and expression patterns of both LeEXP8 and LeEXP10 suggest developmentally specific roles during embryo and seedling growth.
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11706175PMC129264W2071120222What OpenQuestion holds
Registered trials
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