نتایج جستجو برای: stele parenchyma
تعداد نتایج: 83144 فیلتر نتایج به سال:
Babylone achemenide est en general jugee peu importante au regard de la cite neo-babylonienne. Pourtant les archives privees temoignent l’activite cette ville, meme que nombreuses tombes epoque, un tresor d’objets d’argent, des figurines, sceaux. Les signes l’interet rois perses eux-memes pour ont ete tres sous-estimes. A part fragments d’une stele reprenant le relief d Bisutun et Perserbau, pe...
Abstract This paper reports the results of an archaeological survey and test excavation conducted in one ancient megalithic stele sites south Ethiopia, Sakaro Sodo. The Sodo site is situated Gedeo zone, which known to have largest number highest concentration monuments Africa, with estimate more than 10,000 stelae sixty or sites. Prior our work, only absolute date was available (850 ± 40 BP ) (...
In a screen for root hair morphogenesis mutants in Arabidopsis thaliana L. we identified a T-DNA insertion within a type III J-protein AtDjC17 caused altered root hair development and reduced hair length. Root hairs were observed to develop from trichoblast and atrichoblast cell files in both Atdjc17 and 35S::AtDJC17. Localization of gene expression in the root using transgenic plants expressin...
Soil salinity affects large areas of cultivated land, causing significant reductions in crop yield globally. The Na+ toxicity of many crop plants is correlated with overaccumulation of Na+ in the shoot. We have previously suggested that the engineering of Na+ exclusion from the shoot could be achieved through an alteration of plasma membrane Na+ transport processes in the root, if these alterat...
We analyzed the spatial expression pattern of Arabidopsis thaliana adenosine phosphates-isopentenyltransferase genes (AtIPT1, AtIPT3 to AtIPT8) and the effect of inorganic nitrogen sources on their regulation. In mature plants, the AtIPTs were differentially expressed in various tissues including the roots, leaves, stems, flowers and siliques. In transgenic seedlings expressing a gene for green...
As multicellular organisms grow, positional information is continually needed to regulate the pattern in which cells are arranged. In the Arabidopsis root, most cell types are organized in a radially symmetric pattern; however, a symmetry-breaking event generates bisymmetric auxin and cytokinin signaling domains in the stele. Bidirectional cross-talk between the stele and the surrounding tissue...
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