meristem


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Related to meristem: lateral meristem, primary meristem

meristem

or

meristematic tissue

a region of a plant in which active cell division (MITOSIS) occurs, the cells of the meristem not being differentiated into a specialist form. Meristematic tissues occur at the root and shoot tips (see APICAL MERISTEM giving growth in length, while increase in girth of the plant is produced by the CAMBIUM of VASCULAR BUNDLES and the INTERFASCICULAR CAMBIUM. Note that such specialist dividing zones are not found in animals, where cell division occurs in most tissues.
References in periodicals archive ?
The Applicant also complained that Meristem Securities Limited failed to account for the whereabouts of another 50,000 units of Access Bank Plc shares he bought through it in an Initial Public Offer (IPO) in 2004.
RGFR1 and RGFR2 are predominantly expressed in the proximal meristem including the elongation zone and gradually decrease in expression towards the differentiation zone.
2010, Zequin, Yuzbagioglu, Unal, Yilmaz, & Aksoy, 2011), boric acid, citric acid, potassium citrate and sodium citrate, cytotoxic and genotoxic to root meristem cells of A.
Direct systems of regeneration through the culture of organized meristems normally produce true-to-type plants.
To induce the meristems multiplication, the isolated meristem and the meristem with adjacent tissue were inoculated on culture MS medium (MURASHIGE; SKOOG, 1962), supplemented with 20 g [L.
Consequently, in the inflorescences of the cases 1 and 2 we recognize two only types of axillary meristems: the spikelet meristem (SM) and the floral meristem (FM).
In light of the fact that China owes in part, its sweet potato success story to the meristem culture technique [11], the objective of the study was to develop a regeneration protocol for Zimbabwean sweet potato (cv Brondal) using meristems as explants.
However, in many genera, an intermediate Adiantum-Ceratopteris way of development has been detected, in which an apical cell is formed but the meristem is lateral (Nayar & Bajpai 1964, Nayar & Kaur 1971, Gabriel y Galan & Migliaro 2011).
Because each meristem had the potential for growth, fronds with more meristems added more new frond area per month, thereby growing faster in overall size (P < 0.
To the best of our knowledge, no study has been carried out on the cytotoxic and genotoxic effects of dimethoate on root meristem cells of Allium sativum, despite the fact that it is widely used.
For surface sterilization all apical meristem were taken from upper portions of the plants.