| Autor: |
E A, Bykova, D A, Chergintsev, T A, Vlasova, V V, Choob |
| Rok vydání: |
2018 |
| Předmět: |
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| Zdroj: |
Ontogenez. 47(4) |
| ISSN: |
0475-1450 |
| Popis: |
An increase in the proliferative activity of a shoot apical meristem (SAM) and the further accumulation of a pool of undifferentiated cells (fasciation) results in phyllotaxis changes. In the case of Arabidopsis thaliana, a typical spiral leaf arrangement is replaced by an opposite or verticillate one (depending on the level of a fasciation manifestation). Pistil development in mutant plants is accompanied by the appearance of a group of undifferentiated meristematic cells in its central part. The addition of N-1-naphthylphthalamic acid (NPA) causes an increase in the meristem volume and number of stipules in both mutant and control plants. The NPA effect on the floral morphogenesis results in a significant growth of meristemic cell pool. The interaction of different mechanisms of a meristem volume control is discussed. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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