Morphologically and physiologically diverse fruits of two Lepidium species differ in allocation of glucosinolates into immature and mature seed and pericarp
Autor: | Caroline Müller, Said Mohammed, Klaus Mummenhoff, Katharina Klupsch, Matthias Alexander Gesing, Guenter Theissen, Samik Bhattacharya |
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Jazyk: | angličtina |
Rok vydání: | 2020 |
Předmět: |
Fruit and Seed Anatomy
Indoles Physiology Plant Science Plant Reproduction Lepidium Genetically Modified Plants chemistry.chemical_compound Pericarp Heterocyclic Compounds Seed Germination Morphogenesis Chromatography High Pressure Liquid biology Organic Compounds Plant Anatomy Genetically Modified Organisms Eukaryota food and beverages General Medicine Plants Plant Dormancy Chemistry Plant Physiology Seeds Physical Sciences Engineering and Technology Medicine Composition (visual arts) Genetic Engineering General Agricultural and Biological Sciences Research Article Biotechnology Science Glucosinolates Germination Bioengineering Genetics and Molecular Biology Fruits Botany Transgenic lines Plant Defenses Ecosystem Diaspore (botany) Organic Chemistry Organisms Chemical Compounds Water Biology and Life Sciences Brassicaceae biology.organism_classification chemistry Fruit Glucosinolate General Biochemistry Dormancy Biological dispersal Plant Biotechnology Developmental Biology |
Zdroj: | PLoS ONE, Vol 15, Iss 8, p e0227528 (2020) PLoS ONE |
Popis: | The morphology and physiology of diaspores play crucial roles in determining the fate of seeds in unpredictable habitats. In some genera of the Brassicaceae different types of diaspores can be found.Lepidium appelianumproduces non-dormant seeds within indehiscent fruits while inL. campestredormant seeds are released from dehiscent fruits. These different diaspore types offer an excellent model system to analyse the allocation of relevant defence compounds into different tissues, which may maximise diaspore fitness. Total glucosinolate concentration and composition were analysed in immature and mature seeds and pericarps ofL. appelianumandL. campestreusing high-performance liquid chromatography. Moreover, transgenic RNAiL. campestrelines were used for comparison that produce indehiscent fruits due to silencing ofLcINDEHISCENCE, theINDEHISCENCEortholog ofL. campestre. Total glucosinolate concentrations were lower in green compared to mature seeds in all studiedLepidiumspecies and transgenic lines. In contrast, indehiscent fruits ofL. appelianummaintained their total glucosinolate concentration in mature pericarps compared to green ones, while in dehiscentL. campestreand in indehiscent RNAi-LcIND L. campestrea significant decrease in total glucosinolate concentrations from green to mature pericarps could be detected. Regarding the distribution of glucosinolate classes, high concentrations of 4-methoxyindol-3-ylmethyl glucosinolate were found in mature seeds ofL. appelianum, while no indole glucosinolates were detected in mature diaspores ofL. campestre. The diaspores of the latter species may rather depend on aliphatic and aromatic glucosinolates for long-term protection. The allocation patterns of glucosinolates correlate with the morpho-physiologically distinct fruits ofL. appelianumandL. campestreand may be explained by the distinct dispersal strategies and the dormancy status of both species. |
Databáze: | OpenAIRE |
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