نتایج جستجو برای: multiple shoots

تعداد نتایج: 766233  

Journal: :Annals of botany 2010
Markus Keller Julie M Tarara

BACKGROUND AND AIMS The influence of temperature on the timing of budbreak in woody perennials is well known, but its effect on subsequent shoot growth and architecture has received little attention because it is understood that growth is determined by current temperature. Seasonal shoot development of grapevines (Vitis vinifera) was evaluated following differences in temperature near budbreak ...

2011
A. Arumugam K. Gopinath

Leaf and Cotyledon explants of Withania somnifera (L). Dunal were used to evaluate the effect of different growth regulators on the in vitro direct shoot and root initiation methods. Four different explants were used to establish callus shoot and root direct regeneration. In the first experiment leaf segments were cultured on MS basal supplemented with 2,4 – Dichlorophenoxyacetic acid (2,4 – D,...

2012
Wenju Liu Henk Schat Mathijs Bliek Yi Chen Steve P. McGrath Graham George David E. Salt Fang-Jie Zhao

Many plant species are able to reduce arsenate to arsenite efficiently, which is an important step allowing detoxification of As through either efflux of arsenite or complexation with thiol compounds. It has been suggested that this reduction is catalyzed by ACR2, a plant homologue of the yeast arsenate reductase ScACR2. Silencing of AtACR2 was reported to result in As hyperaccumulation in the ...

Journal: :Zeitschrift fur Naturforschung. C, Journal of biosciences 2008
Wanwimon Lualon Wanchai De-Eknamkul Hiroyuki Tanaka Yukihiro Shoyama Waraporn Putalun

An efficient in vitro method for multiple shoot bud induction and regeneration has been developed in Artemisia annua L. using leaf and stem explants in various concentrations and combinations of plant growth regulators to evaluate the frequency of regeneration. The sources of explants as well as plant growth regulators in the medium were found to influence the multiple shoot induction. The resu...

Journal: :Current Biology 2016
Dolf Weijers

Local auxin concentration maxima promote organ initiation in the plant shoot meristem, but how auxin peaks are formed has remained unclear. A new study proposes a cellular Matthew effect, where auxin is pumped into those cells that have higher concentrations.

Journal: :Cell 2000
Heiko Schoof Michael Lenhard Achim Haecker Klaus F.X Mayer Gerd Jürgens Thomas Laux

The higher-plant shoot meristem is a dynamic structure whose maintenance depends on the coordination of two antagonistic processes, organ initiation and self-renewal of the stem cell population. In Arabidopsis shoot and floral meristems, the WUSCHEL (WUS) gene is required for stem cell identity, whereas the CLAVATA1, 2, and 3 (CLV) genes promote organ initiation. Our analysis of the interaction...

Journal: :علوم باغبانی ایران 0
صابر اوستان دانشجوی سابق کارشناسی ارشد، علوم باغبانی، دانشکدۀ کشاورزی، دانشگاه ارومیه لطفعلی ناصری دانشیار علوم باغبانی، دانشکدۀ کشاورزی، دانشگاه ارومیه

silicon has useful effects on growth and yield of many plants. the aim of the present study is to investigate the impact of nano silicon oxide on proliferation and improvement of some growth traits of apple, cultivar gala. thus, an experiment was designed based on completely randomized design (crd) with five levels of nano silicon oxide concentrations (0, 25, 50, 100 & 200 ppm) in five replicat...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شهید باهنر کرمان - دانشکده ادبیات و زبانهای خارجی 1392

abstract the current research tried to examine the impact of multiple intelligence (mi) and its components on multiple choice (mc) and open ended (oe) reading comprehension tests. ninety six students of high school in grade four took part in this study. to collect data, participants completed multiple intelligence (mi) questionnaires along with a multiple choice (mc) and open ended (oe) forms ...

2012
Mohitosh Dey Souvika Bakshi Gabor Galiba Lingaraj Sahoo Sanjib Kumar Panda

Agrobacterium-mediated transformation of indica rice has been established in only a limited number of cultivars because the regeneration of plants from transformed embryogenic calli is highly cultivar-specific. Establishment of a highly efficient plant regeneration system from shoot apex explants applicable to many cultivars of indica rice will accelerate the application of transformation techn...

Journal: :Environmental entomology 2007
Masahiro Nakamura Takayuki Ohgushi

Insect herbivory can negatively or positively affect plant performance. We examined how a stem gall midge Rabdophaga rigidae affects the survival, growth, and bud production of current year shoots of the willow Salix eriocarpa. In mid-May, the gall midge initiates stem galls on the apical regions of shoots. The following spring, galled shoots had thicker basal diameters and more lateral shoots ...

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