Results 31 to 40 of about 28,928 (232)

Processus de développement génératif chez le pommier cv Golden Delicious [PDF]

Biotechnologie, Agronomie, Société et Environnement, 2002
Generative development process of apple cv Golden Delicious. The meristem organogenesis of the ""bourse"" shoot, the morphologic and the histologic modifications were studied at the end of the growth stopping by means of histological techniques ...
Mehri H., Crabbe J.
doaj  

A dynamic genetic-hormonal regulatory network model explains multiple cellular behaviors of the root apical meristem of Arabidopsis thaliana. [PDF]

PLoS Computational Biology, 2017
The study of the concerted action of hormones and transcription factors is fundamental to understand cell differentiation and pattern formation during organ development.
Mónica L García-Gómez, Eugenio Azpeitia, Elena R Álvarez-Buylla   +2 more
doaj   +1 more source

Gibberellin mediates daylength-controlled differentiation of vegetative meristems in strawberry (Fragaria × ananassa Duch) [PDF]

BMC Plant Biology, 2009
Differentiation of long and short shoots is an important developmental trait in several species of the Rosaceae family. However, the physiological mechanisms controlling this differentiation are largely unknown. We have studied the role of gibberellin (GA) in regulation of shoot differentiation in strawberry (Fragaria x ananassa Duch.) cv. Korona.
Hytönen, Timo, Junttila, Olavi, Elomaa, Paula, Moritz, Thomas   +3 more
openaire   +5 more sources

Meristem micropropagation of cassava (Manihot esculenta) evokes genome-wide changes in DNA methylation

Frontiers in Plant Science, 2015
There is great interest in the phenotypic, genetic and epigenetic changes associated with plant in vitro culture known as somaclonal variation. In vitro propagation systems that are based on the use of microcuttings or meristem cultures are considered ...
Shedrack Reuben Kitimu, Shedrack Reuben Kitimu, Julian eTaylor, Timothy J March, Fred eTairo, Mike J Wilkinson, Carlos Marcelino Rodriguez Lopez   +6 more
doaj   +1 more source

MsEnod12A Expression Is Linked to Meristematic Activity During Development of Indeterminate and Determinate Nodules and Roots

Molecular Plant-Microbe Interactions, 1997
During development of nodules and roots, the alfalfa early nodulin gene MsEnod12A is expressed adjacent to the meristem. Using transgenic alfalfa carrying a MsEnod12A promoter-gusA fusion, we investigated the regulation of MsEnod12A expression in mature ...
Petra Bauer, Simone Poirier, Pascal Ratet, Adam Kondorosi   +3 more
doaj   +1 more source

Short-range control of cell differentiation in the Arabidopsis root meristem

Nature, 1997
Meristems are distinctive regions of plants that have capacity for continuous growth. Their developmental activity generates the majority of plant organs. It is currently unknown how cell division and cell differentiation are orchestrated in meristems, although genetic studies have demonstrated the relevance of a proper balance between the two ...
Scheres, B.J.G., Berg, C. van den, Willemsen, V., Hendriks, G., Weisbeek, P.   +4 more
openaire   +3 more sources

Positional Information by Differential Endocytosis Splits Auxin Response to Drive Arabidopsis Root Meristem Growth [PDF]

Current Biology, 2011
In the Arabidopsis root meristem, polar auxin transport creates a transcriptional auxin response gradient that peaks at the stem cell niche and gradually decreases as stem cell daughters divide and differentiate [1-3]. The amplitude and extent of this gradient are essential for both stem cell maintenance and root meristem growth [4, 5].
Santuari, Luca, Scacchi, Emanuele, Rodriguez-Villalon, Antia, Salinas, Paula, Dohmann, Esther M. N., Brunoud, Geraldine, Vernoux, Teva, Smith, Richard S., Hardtke, Christian S.   +8 more
openaire   +3 more sources

Single-cell RNA sequencing of shoot apex reveals the mechanism of cyclin regulating cell division via auxin signaling pathway in Populus alba

Frontiers in Plant Science
The shoot apex of Populus alba primarily comprises the shoot apical meristem, axillary meristem, leaf primordium, and young leaves, all of which exhibit high division potential. The single-cell RNA sequencing of the apical buds of P.
Jing-hui Liang, Jing-hui Liang, Zhao-qun Wu, Zhao-qun Wu, Yue-Xuan Zhang, Yue-Xuan Zhang, Ye-Bo Yang, Ye-Bo Yang, Shi-Yi Wang, Shi-Yi Wang, Meng-Yu Gai, Meng-Yu Gai, Yu-Wen Wang, Yu-Wen Wang, Xiu-Xing Zhang, Xiu-Xing Zhang, Jing Xue, Jing Xue, Bo-Hao Duan, Bo-Hao Duan, Hai-Ling Yang, Hai-Ling Yang   +21 more
doaj   +1 more source

Structural Analysis of Reproductive Development in Pistillate Flowers of Laurus nobilis L.

Notulae Botanicae Horti Agrobotanici Cluj-Napoca, 2013
In Laurus nobilis L. (Lauraceae) the development of female flowers (pistillate), between floral meristem differentiation and fruit formation was inspected through histological sections and SEM techniques. The reproductive development of the female flower
Özlem AYTÜRK, Meral ÜNAL
doaj   +1 more source

Localization of acid phosphatase in the differentiating root meristem

Biologia Plantarum, 1964
The localization of acid phosphatase was studied by Gomori’s newer technique and by azo-coupling methods (α-naphthyl phosphate + fast red ITR or fast garnet GBC; AS or AS D phosphate + fast blue B or fast red violet LB) in the root tips ofVicia faba L. on paraffin sections (fixation with Wolman’s acidified ethanol) and on frozen sections (fixation with
Karel Beneš, Jana Opatrná
openaire   +1 more source