Results 21 to 30 of about 28,928 (232)

ABA mediates PEG-mediated premature differentiation of root apical meristem in plants [PDF]

Plant Signaling & Behavior, 2014
Root apical meristem (RAM) is central for indeterminate growth of plant roots and in sensing environmental stimuli, such as water status. Recently, we reported that PEG8000-simulated mild and moderate osmotic stress induces premature differentiation of RAM, which is a conserved adaptive mechanism in higher plants to cope with water stress.
Hongtao, Ji, Xia, Li
openaire   +2 more sources

Single-Cell Telomere-Length Quantification Couples Telomere Length to Meristem Activity and Stem Cell Development in Arabidopsis

Cell Reports, 2015
Telomeres are specialized nucleoprotein caps that protect chromosome ends assuring cell division. Single-cell telomere quantification in animals established a critical role for telomerase in stem cells, yet, in plants, telomere-length quantification has ...
Mary-Paz González-García, Irina Pavelescu, Andrés Canela, Xavier Sevillano, Katherine A. Leehy, Andrew D.L. Nelson, Marta Ibañes, Dorothy E. Shippen, Maria A. Blasco, Ana I. Caño-Delgado   +9 more
doaj   +1 more source

Development of Flowers Buds and Mixed Buds in the Dichasial Inflorescence of Geranium koreanum Kom. (Geraniaceae)

Plants, 2023
Flower bud differentiation is of great significance for understanding plant evolution and ecological adaptability. The development of flower buds and mixed buds in the dichasial inflorescence of Geranium koreanum was described in this paper.
Wanpei Lu, Zhongzhou Han, Qinghua Liu, Kuiling Wang, Qingchao Liu, Xuebin Song   +5 more
doaj   +1 more source

Flower Bud Differentiation in Quercus suber L.

South-East European Forestry, 2016
Background and Purpose: Cork oak (Quercus suber L.) is one of the most important forest species growing in the Western Mediterranean region. This investigation intends to assess the timing of flowering differentiation of cork oak and contribute to the ...
Maria Carolina Varela, Teresa Valdiviesso, Elisa Novelli, Cândida Sofia Trindade   +3 more
doaj   +1 more source

Spatial Coordination between Stem Cell Activity and Cell Differentiation in the Root Meristem [PDF]

Developmental Cell, 2013
A critical issue in development is the coordination of the activity of stem cell niches with differentiation of their progeny to ensure coherent organ growth. In the plant root, these processes take place at opposite ends of the meristem and must be coordinated with each other at a distance. Here, we show that in Arabidopsis, the gene SCR presides over
MOUBAYIDIN, LAILA, R. Dimambro, DI MAMBRO, RICCARDO, Rosangela Sozzani, PACIFICI, ELENA, SALVI, ELENA, Inez Terpstra, Dongping Bao, A. Vandijken, DELLO IOIO, RAFFAELE, Raffaele Dello Ioio, PERILLI, SERENA, Karin Ljung, Philip n Benfey, Renze Heidstra, COSTANTINO, Paolo, SABATINI, Sabrina   +16 more
openaire   +8 more sources

TCPs, WUSs, and WINDs: Families of transcription factors that regulate shoot meristem formation, stem cell maintenance, and somatic cell differentiation

Frontiers in Plant Science, 2014
In contrast to somatic mammalian cells, which cannot alter their fate, plant cells can dedifferentiate to form totipotent callus cells and regenerate a whole plant, following treatment with specific phytohormones.
Miho eIkeda, Masaru eOhme-Takagi, Masaru eOhme-Takagi   +2 more
doaj   +1 more source

MERISTEM-DEFECTIVE / DEFECTIVELY ORGANIZED TRIBUTARIES2 regulates the balance between stemness and differentiation in the root meristem through RNA splicing control

, 2022
ABSTRACTPlants respond to environmental stresses through controlled stem cell maintenance and meristem activity. One level of transcriptional control is RNA alternative splicing. However the mechanistic link between stress, meristem function and RNA splicing is poorly understood.
Helen L. Thompson, Weiran Shen, Rodrigo Matus, Medhavi Kakkar, Carl Jones, David Dolan, Sushma Grellscheid, Xiyan Yang, Na Zhang, Sina Mozaffari-Jovin, Chunli Chen, Xianlong Zhang, Jennifer F. Topping, Keith Lindsey   +13 more
openaire   +3 more sources

AMP1 and CYP78A5/7 act through a common pathway to govern cell fate maintenance in Arabidopsis thaliana.

PLoS Genetics, 2020
Higher plants can continuously form new organs by the sustained activity of pluripotent stem cells. These stem cells are embedded in meristems, where they produce descendants, which undergo cell proliferation and differentiation programs in a ...
Olena Poretska, Saiqi Yang, Delphine Pitorre, Brigitte Poppenberger, Tobias Sieberer   +4 more
doaj   +1 more source

Transcriptome analysis of tomato flower pedicel tissues reveals abscission zone-specific modulation of key meristem activity genes. [PDF]

PLoS ONE, 2013
Tomato flower abscises at the anatomically distinct abscission zone that separates the pedicel into basal and apical portions. During abscission, cell separation occurs only at the abscission zone indicating distinctive molecular regulation in its cells.
Xiang Wang, Danmei Liu, Aili Li, Xiuli Sun, Rongzhi Zhang, Liang Wu, Yanchun Liang, Long Mao   +7 more
doaj   +1 more source

Chromosomal characteristics of barley root meristems differentiated from calli

Biologia Plantarum, 1983
Callogenesis was induced in mature embryos. The efficiency of induction and the growth of calli were dependent on 2,4-D concentration. No regeneration of buds or shoots was observed in 720 calli studied, but most calli showed intensive root proliferation on the regeneration medium.
Blanka Vostřáková-Němcová, S. Rakouský, M. Ondřej   +2 more
openaire   +1 more source