Nitrogen Supply Drives Senescence-Related Seed Storage Protein Expression in Rapeseed Leaves
| العنوان: | Nitrogen Supply Drives Senescence-Related Seed Storage Protein Expression in Rapeseed Leaves |
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| المؤلفون: | Jasmin Doll, Lena Riester, Stefan Bieker, Ulrike Zentgraf, Andreas Fangmeier, Juergen Franzaring |
| المصدر: | Genes, Vol 10, Iss 2, p 72 (2019) Genes Volume 10 Issue 2 |
| بيانات النشر: | MDPI AG, 2019. |
| سنة النشر: | 2019 |
| مصطلحات موضوعية: | 0106 biological sciences, 0301 basic medicine, Canopy, Senescence, Rapeseed, senescence, lcsh:QH426-470, Nitrogen, seed storage proteins, hydrogen peroxide, 01 natural sciences, Article, Transcriptome, 03 medical and health sciences, Nutrient, Gene Expression Regulation, Plant, Arabidopsis, Genetics, Storage protein, Genetics (clinical), chemistry.chemical_classification, biology, Nitrogen deficiency, Brassica rapa, nitrogen supply, oil seed rape, food and beverages, nitrogen remobilization, biology.organism_classification, Plant Leaves, Horticulture, lcsh:Genetics, 030104 developmental biology, chemistry, 010606 plant biology & botany |
| الوصف: | In general, yield and fruit quality strongly rely on efficient nutrient remobilization during plant development and senescence. Transcriptome changes associated with senescence in spring oilseed rape grown under optimal nitrogen supply or mild nitrogen deficiency revealed differences in senescence and nutrient mobilization in old lower canopy leaves and younger higher canopy leaves [1]. Having a closer look at this transcriptome analyses, we identified the major classes of seed storage proteins (SSP) to be expressed in vegetative tissue, namely leaf and stem tissue. Expression of SSPs was not only dependent on the nitrogen supply but transcripts appeared to correlate with intracellular H2O2 contents, which functions as well-known signaling molecule in developmental senescence. The abundance of SSPs in leaf material transiently progressed from the oldest leaves to the youngest. Moreover, stems also exhibited short-term production of SSPs, which hints at an interim storage function. In order to decipher whether hydrogen peroxide also functions as a signaling molecule in nitrogen deficiency-induced senescence, we analyzed hydrogen peroxide contents after complete nitrogen depletion in oilseed rape and Arabidopsis plants. In both cases, hydrogen peroxide contents were lower in nitrogen deficient plants, indicating that at least parts of the developmental senescence program appear to be suppressed under nitrogen deficiency. |
| وصف الملف: | application/pdf |
| اللغة: | English |
| تدمد: | 2073-4425 |
| الوصول الحر: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f82e06416e8cde50d9bbb192155bfdeaTest https://www.mdpi.com/2073-4425/10/2/72Test |
| حقوق: | OPEN |
| رقم الانضمام: | edsair.doi.dedup.....f82e06416e8cde50d9bbb192155bfdea |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 20734425 |
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