نتایج جستجو برای: mother plant

تعداد نتایج: 438959  

2009
Bin Cui Bei Pan Heng Tao Shen Ying Wang Ce Zhang

In this work, we demonstrate an automatic video annotation system which can provide users with the representative keywords for new videos. The system explores the hierarchical concept model and multiple feature model to improve the effectiveness of annotation, which consists of two components: a SVM classifier to ascertain the category; and a multiple feature model to label the keywords. We imp...

2011
Dumitru Roman Xiaoxin Gao Arne-Jørgen Berre

This paper introduces the Sensapp platform, a semantic and OGCbased sensor application platform to enable users to register, annotate, search, visualize, and compose OGC-based sensors and services for creating addedvalue services and applications. Functionalities of Sensapp such as sensor registration, sensor data visualization, visual composition and generation of executable service compositio...

Journal: :IJMSTR 2013
Cristina Marghescu Mihaela Pantazica Sever Pasca

This paper aims to investigate the performance of a system consisting of plethysmographic sensors used to measure the human pulse (or heart rate), and ZigBee wireless networks used to collect the data in view of processing and storing. A demo system build around a MICROCHIP development kit (PICDEM Z) is described. Some conclusion derived on the basis of the observations obtained during the impl...

Journal: :Journal of Social Welfare and Family Law 2019

Journal: :Journal of cell science 1978
H G Dickinson U Potter

The events that accompany female meiosis in Lilium parallel almost exactly those characteristic of male cells. The megaspore mother-cell is first cut off from investing tissue by a callosic wall, and this isolated cytoplasm undergoes a phase of comprehensive dedifferentiation. Not only does the major part of the ribosome population appear to be removed from both the cytoplasm and plastids, but ...

2014
Dibyendu Talukdar Tulika Talukdar

A Lathyrus sativus L. mutant isolated in ethylmethane sulfonate-treated M2 progeny of mother variety BioL-212 and designated as rlfL-1 was characterized by inwardly rolled-leaf and stem and bud fasciations. The mutant exhibited karyomorphological peculiarities in both mitosis and meiosis with origin of aneuploidy. The mitosis was vigorous with high frequency of divisional cells and their quick ...

2015
Célia Baroux Daphné Autran

Sexual reproduction in flowering plants offers a number of remarkable aspects to developmental biologists. First, the spore mother cells - precursors of the plant reproductive lineage - are specified late in development, as opposed to precocious germline isolation during embryogenesis in most animals. Second, unlike in most animals where meiosis directly produces gametes, plant meiosis entails ...

2014
Paromik Bhattacharyya Suman Kumaria Reemavareen Diengdoh Pramod Tandon

An efficient genetically stable regeneration protocol with increased phytochemical production has been established for Dendrobium nobile, a highly prized orchid for its economic and medicinal importance. Protocorm like bodies (PLBs) were induced from the pseudostem segments using thidiazuron (TDZ; 1.5 mg/l), by-passing the conventional auxin-cytokinin complement approach for plant regeneration....

Journal: :Current Biology 2014
Ankit Walia Masayoshi Nakamura Dorianne Moss Viktor Kirik Takashi Hashimoto David W. Ehrhardt

Many differentiated animal cells, and all higher plant cells, build interphase microtubule arrays of specific architectures without benefit of a central organizer, such as a centrosome, to control the location and geometry of microtubule nucleation. These acentrosomal arrays support essential cell functions such as morphogenesis, but the mechanisms by which the new microtubules are positioned a...

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