One of the mysteries of the English language finally explained.
A region of plant tissue, found chiefly at the growing tips of roots and shoots and in the cambium, consisting of actively dividing cells forming new tissue.
- ‘This condition can also be due to restricted diffusion of oxygen into internal tissues or high rates of cellular metabolism, as in actively dividing cells of meristems.’
- ‘Leaves communicate photoperiodic signals to meristems, stolons and buds in flowering, tuberization and dormancy.’
- ‘The developmentally accumulated proteins localized to early differentiating, but not the highly dividing, regions of the root and shoot apical meristems.’
- ‘Plant growth originates from meristems, localized tissues with stem cell features that are at the origin of all organs of the plant.’
- ‘These embryos had organized root meristems and apical shoot meristems flanked by the developing cotyledons.’
Late 19th century: formed irregularly from Greek meristos ‘divisible’, from merizein ‘divide into parts’, from meros ‘part’. The suffix -em is on the pattern of words such as xylem.
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