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  • noun

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undifferentiated tissue from which new cells are formed, as at the tip of a stem or root

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71) Thus, it is likely that loss of FIN caused under-arabinosylation of tomato CLV3 and led to downregulation of the CLV signaling pathway, resulting in overaccumulation of stem cells in the shoot apical meristems.
2011), were clastogenic, mutagenic, and cytotoxic to normal human peripheral blood cells; boric acid, citric acid, potassium citrate and sodium citrate (Brasil, 1999) which, in agreement with Ttikoglu (2007), were cytotoxic to root meristems cells of A cepa.
These findings indicate that shoot meristems can be used as explants for ensuring clonal fidelity of micropropagated A.
Fire typically suppresses woody species by destroying aboveground biomass and meristems, which alters subsequent plant growth, architecture, reproductive capacity and competitive interactions (Glenn-Lewin et al.
The genetically altered plants flower in as little as one-third the time it takes normal plants, in part because shoots for stems and leaves form sooner than floral meristems, Yanofsky says.
1987a,b); large plants receiving full sun may maximize fitness by allocating meristems to branches that will increase the potential for growth and later reproduction (e.
Our simple hypothesis was that an increase in the size of the inflorescence meristem - the stem-cell reservoir that gives rise to flowers and ultimately, after pollination, seeds - will provide more physical space for the development of the structures that mature into kernels.
Thus, under the conditions analyzed, doses of the cookie flavoring proved to be cytotoxic as they significantly inhibited cell division in root meristems of the test system.
cepa root meristem cells in a statistically significant manner when compared to the MIs obtained from their respective controls, thus presenting as cytotoxic.
Among the monocotyledons, secondary growth is not so common and is realized by the activity of peculiarly different meristems.
Again, each of the indeterminate meristems could choose one of these three fates, and so on (Kellogg, 2000).
Some other changes like reduction in the mass of vascular cylinder, cortex layer and apical meristems.