Drought induces distinct growth response, protection, and recovery mechanisms in the maize leaf growth zone
Drought is the most important crop yield-limiting factor, and detailed knowledge of its impact on plant growth regulation is crucial. The maize (Zea mays) leaf growth zone offers unique possibilities for studying the spatiotemporal regulation of developmental processes by transcriptional analyses an...
| Autores principales: | , , , , , , , , , , |
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| Formato: | info:ar-repo/semantics/artículo |
| Lenguaje: | Inglés |
| Publicado: |
2017
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| Materias: | |
| Acceso en línea: | http://hdl.handle.net/20.500.12123/1231 http://www.plantphysiol.org/content/169/2/1382 |
| _version_ | 1855034769685872640 |
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| author | Avramova, Viktoriya AbdElgawad, Hamada Zhang, Zhengfeng Fotschki, Bartosz Casadevall, Romina Vergauwen, Lucia Knapen, Dries Taleisnik, Edith Guisez, Yves Asard, Han Beemster, Gerrit T.S. |
| author_browse | AbdElgawad, Hamada Asard, Han Avramova, Viktoriya Beemster, Gerrit T.S. Casadevall, Romina Fotschki, Bartosz Guisez, Yves Knapen, Dries Taleisnik, Edith Vergauwen, Lucia Zhang, Zhengfeng |
| author_facet | Avramova, Viktoriya AbdElgawad, Hamada Zhang, Zhengfeng Fotschki, Bartosz Casadevall, Romina Vergauwen, Lucia Knapen, Dries Taleisnik, Edith Guisez, Yves Asard, Han Beemster, Gerrit T.S. |
| author_sort | Avramova, Viktoriya |
| collection | INTA Digital |
| description | Drought is the most important crop yield-limiting factor, and detailed knowledge of its impact on plant growth regulation is crucial. The maize (Zea mays) leaf growth zone offers unique possibilities for studying the spatiotemporal regulation of developmental processes by transcriptional analyses and methods that require more material, such as metabolite and enzyme activity measurements. By means of a kinematic analysis, we show that drought inhibits maize leaf growth by inhibiting cell division in the meristem and cell expansion in the elongation zone. Through a microarray study, we observed the down-regulation of 32 of the 54 cell cycle genes, providing a basis for the inhibited cell division. We also found evidence for an up-regulation of the photosynthetic machinery and the antioxidant and redox systems. This was confirmed by increased chlorophyll content in mature cells and increased activity of antioxidant enzymes and metabolite levels across the growth zone, respectively. We demonstrate the functional significance of the identified transcriptional reprogramming by showing that increasing the antioxidant capacity in the proliferation zone, by overexpression of the Arabidopsis (Arabidopsis thaliana) iron-superoxide dismutase gene, increases leaf growth rate by stimulating cell division. We also show that the increased photosynthetic capacity leads to enhanced photosynthesis upon rewatering, facilitating the often-observed growth compensation. |
| format | info:ar-repo/semantics/artículo |
| id | INTA1231 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2017 |
| publishDateRange | 2017 |
| publishDateSort | 2017 |
| record_format | dspace |
| spelling | INTA12312017-11-16T12:39:21Z Drought induces distinct growth response, protection, and recovery mechanisms in the maize leaf growth zone Avramova, Viktoriya AbdElgawad, Hamada Zhang, Zhengfeng Fotschki, Bartosz Casadevall, Romina Vergauwen, Lucia Knapen, Dries Taleisnik, Edith Guisez, Yves Asard, Han Beemster, Gerrit T.S. Zea Mays Maíz Sequía Antioxidantes Crecimiento Hojas Protección de las Plantas Clorofilas Chlorophylls Maize Drought Antioxidants Growth Leaves Plant Protection Drought is the most important crop yield-limiting factor, and detailed knowledge of its impact on plant growth regulation is crucial. The maize (Zea mays) leaf growth zone offers unique possibilities for studying the spatiotemporal regulation of developmental processes by transcriptional analyses and methods that require more material, such as metabolite and enzyme activity measurements. By means of a kinematic analysis, we show that drought inhibits maize leaf growth by inhibiting cell division in the meristem and cell expansion in the elongation zone. Through a microarray study, we observed the down-regulation of 32 of the 54 cell cycle genes, providing a basis for the inhibited cell division. We also found evidence for an up-regulation of the photosynthetic machinery and the antioxidant and redox systems. This was confirmed by increased chlorophyll content in mature cells and increased activity of antioxidant enzymes and metabolite levels across the growth zone, respectively. We demonstrate the functional significance of the identified transcriptional reprogramming by showing that increasing the antioxidant capacity in the proliferation zone, by overexpression of the Arabidopsis (Arabidopsis thaliana) iron-superoxide dismutase gene, increases leaf growth rate by stimulating cell division. We also show that the increased photosynthetic capacity leads to enhanced photosynthesis upon rewatering, facilitating the often-observed growth compensation. Fil: AbdElgawad, Hamada. University of Beni-Suef. Department of Botany, Faculty of Science; Egipto Fil: Zhang, Zhengfeng. Central China Normal University. , School of Life Sciences. Hubei Key Laboratory of Genetic Regulation and Integrative Biology; China Fil: Fotschki, Bartosz. University of Antwerp, Campus Drie Eiken. Department of Veterinary Sciences; Bélgica Fil: Casadevall, Romina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Rosario. Centro de Estudios Fotosintéticos y Bioquímicos; Argentina Fil: Vergauwen, Lucia. University of Antwerp, Campus Drie Eiken. Department of Veterinary Sciences; Bélgica Fil: Knapen, Dries. University of Antwerp, Campus Drie Eiken. Department of Veterinary Sciences; Bélgica Fil: Taleisnik, Edith. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Fisiología y Recursos Genéticos Vegetales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Fil: Guisez, Yves. University of Antwerp, Campus Drie Eiken. Department of Veterinary Sciences; Bélgica Fil: Asard, Han University of Antwerp. Department of Biology Molecular Plant Physiology and Biotechnology; Bélgica Beemster, Gerrit T.S. University of Antwerp. Department of Biology; Bélgica 2017-09-15T15:10:38Z 2017-09-15T15:10:38Z 2015-10 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://hdl.handle.net/20.500.12123/1231 http://www.plantphysiol.org/content/169/2/1382 1532-2548 eng info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) application/pdf Plant physiology 169 (2) : 1382-1396. (2015). |
| spellingShingle | Zea Mays Maíz Sequía Antioxidantes Crecimiento Hojas Protección de las Plantas Clorofilas Chlorophylls Maize Drought Antioxidants Growth Leaves Plant Protection Avramova, Viktoriya AbdElgawad, Hamada Zhang, Zhengfeng Fotschki, Bartosz Casadevall, Romina Vergauwen, Lucia Knapen, Dries Taleisnik, Edith Guisez, Yves Asard, Han Beemster, Gerrit T.S. Drought induces distinct growth response, protection, and recovery mechanisms in the maize leaf growth zone |
| title | Drought induces distinct growth response, protection, and recovery mechanisms in the maize leaf growth zone |
| title_full | Drought induces distinct growth response, protection, and recovery mechanisms in the maize leaf growth zone |
| title_fullStr | Drought induces distinct growth response, protection, and recovery mechanisms in the maize leaf growth zone |
| title_full_unstemmed | Drought induces distinct growth response, protection, and recovery mechanisms in the maize leaf growth zone |
| title_short | Drought induces distinct growth response, protection, and recovery mechanisms in the maize leaf growth zone |
| title_sort | drought induces distinct growth response protection and recovery mechanisms in the maize leaf growth zone |
| topic | Zea Mays Maíz Sequía Antioxidantes Crecimiento Hojas Protección de las Plantas Clorofilas Chlorophylls Maize Drought Antioxidants Growth Leaves Plant Protection |
| url | http://hdl.handle.net/20.500.12123/1231 http://www.plantphysiol.org/content/169/2/1382 |
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