Suppression of heterotrimeric G-protein β-subunit affects anther shape, pollen development and inflorescence architecture in tobacco
The role of the heterotrimeric G-protein β-subunit in plant development was studied in transgenic tobacco (Nicotiana tabacum L.) plants with reduced β-subunit levels due to the antisense expression of the β-subunit mRNA. The antisense plants had aberrant anther shape and produced non-germinating pol...
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| Main Authors: | , |
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| Format: | Article (Journal) |
| Language: | English |
| Published: |
27 January 2005
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| In: |
Planta
Year: 2005, Volume: 220, Issue: 5, Pages: 737-746 |
| ISSN: | 1432-2048 |
| DOI: | 10.1007/s00425-004-1393-4 |
| Online Access: | Verlag, Volltext: http://dx.doi.org/10.1007/s00425-004-1393-4 Verlag, Volltext: https://link.springer.com/article/10.1007/s00425-004-1393-4 
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| Author Notes: | Tatjana Peškan-Berghöfer, Jana Neuwirth, Victor Kusnetsov, Ralf Oelmüller |
| Summary: | The role of the heterotrimeric G-protein β-subunit in plant development was studied in transgenic tobacco (Nicotiana tabacum L.) plants with reduced β-subunit levels due to the antisense expression of the β-subunit mRNA. The antisense plants had aberrant anther shape and produced non-germinating pollen. The anthers were sporadically transformed to petals, whereas other floral organs were not affected. The pollen grains were smaller than the wild-type pollen and had abnormal cell walls. The architecture of mature antisense plants was altered. The plants had long branched panicles and short stems. These data suggest that the β-subunit of the plant heterotrimeric G-proteins is involved in the regulation of the reproductive phase of the tobacco life cycle, particularly in stamen development and pollen maturation. |
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| Item Description: | Gesehen am 14.06.2017 |
| Physical Description: | Online Resource |
| ISSN: | 1432-2048 |
| DOI: | 10.1007/s00425-004-1393-4 |