Results 31 to 40 of about 39,648 (304)

Epigenetics at the crossroads of secondary growth regulation

open access: yesFrontiers in Plant Science, 2022
The development of plant tissues and organs during post-embryonic growth occurs through the activity of both primary and secondary meristems. While primary meristems (root and shoot apical meristems) promote axial plant growth, secondary meristems ...
Vera Inácio   +5 more
doaj   +1 more source

Production of callus and roots from lateral meristems of Loeselia mexicana

open access: yesBotan‪ical Sciences, 2018
Background: Loeselia mexicana, known as Mexican false calico, or espinosilla in Spanish, is a widely distributed secondary forest plant with a significant number of medicinal and cosmetic uses.
Lizeth Aguirre-Alberto   +1 more
doaj   +1 more source

Then There Were Plenty-Ring Meristems Giving Rise to Many Stamen Whorls

open access: yesPlants, 2021
Floral meristems are dynamic systems that generate floral organ primordia at their flanks and, in most species, terminate while giving rise to the gynoecium primordia. However, we find species with floral meristems that generate additional ring meristems
Doudou Kong, Annette Becker
doaj   +1 more source

Vegetative Apical Meristems. [PDF]

open access: yesThe Plant Cell, 1992
A fascinating aspect of plant biology is that a small cell group is the origin of shoot systems as varied as redwood trees or Arabidopsis. The first recognition that shoot systems originate from small groups of cells was by Kaspar Wolff in 1759 (cited in Cutter, 1965). These small groups of cells are known as shoot apical meristems.
openaire   +2 more sources

Morphogenesis at the shoot meristem

open access: yesComptes Rendus. Biologies, 2023
Shoot apical meristems are populations of stem cells which initiate the aerial parts of higher plants. Work during the last decades has revealed a complex network of molecular regulators, which control both meristem maintenance and the production of different types of organs.
openaire   +3 more sources

Autoreproductive cells and plant meristem construction: The case of the tomato cap meristem [PDF]

open access: yesProtoplasma, 2001
Root apical meristems are composed of two zones in which either formative or proliferative cell divisions occur. Within the formative zone, autoreproductive initial cells (a-cells) occupy distinctive locations. By means of graph-L-systems, the behavior of one such type of a-cells has been investigated, with particular reference to root caps within the ...
Barlow, PW, Lück, HB, Lück, J
openaire   +2 more sources

Effects of Osmolytic Agents on Somatic Embryogenesis of Saffron (<i>Crocus sativus </i>L.)

open access: yesNotulae Scientia Biologicae, 2015
A protocol for callus induction from meristem tissues and subsequent somatic embryo formation were established in this study. Explants were taken from apical and lateral meristems of saffron and these explants were cultured on MS medium supplemented with
Maryam VAHEDI   +2 more
doaj   +3 more sources

In Vitro Proliferation and Cryoconservation of Banana and Plantain Elite Clones

open access: yesJournal of Horticultural Research, 2017
Agriculture and modern biotechnology are increasingly becoming interdependent, and many new techniques have brought new opportunities for enhancing production and marketing.
Reyes Guillermo   +7 more
doaj   +1 more source

The QTL GNP1 Encodes GA20ox1, Which Increases Grain Number and Yield by Increasing Cytokinin Activity in Rice Panicle Meristems

open access: yesPLoS Genetics, 2016
Cytokinins and gibberellins (GAs) play antagonistic roles in regulating reproductive meristem activity. Cytokinins have positive effects on meristem activity and maintenance.
Yuan Wu   +6 more
semanticscholar   +1 more source

Meristem Maintenance in Maize [PDF]

open access: yesThe Plant Cell, 2015
Stem cells in the shoot meristem are the ultimate source of aerial organs in plants. They shape the plant, determining the layout of branches, leaves, and flowers, and allow plants to produce new organs throughout their life cycle.
openaire   +2 more sources

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