Plant regeneration is a self-repair of the plant body in response to adverse conditions or damaged structures, and root allows better adapt its environment by supplementing roots’ structure. Previous research has shown that adventitious roots can be made occur from scratch two ways. Studies simulate through natural allow process broadly divided into three stages: perception early signals, massi...

Plants host at the contact zone with soil a distinctive root-associated bacterial microbiota believed to function in plant nutrition and health. We investigated the diversity of the root microbiota within a phylogenetic framework of hosts: three Arabidopsis thaliana ecotypes along with its sister species Arabidopsis halleri and Arabidopsis lyrata, as well as Cardamine hirsuta, which diverged fr...

Plants like Arabidopsis thaliana are convenient model systems to study fundamental questions related to regulation of the stress transcriptome in response to stress challenges. Microarray results of the Arabidopsis transcriptome indicate that several genes could be upregulated during multiple stresses. High-salinity, drought, and low temperature are three common environmental stress factors tha...

MicroRNAs (miRNAs) play essential roles in plant and animal development, but the cause and effect of miRNA expression divergence between closely related species and in interspecific hybrids or allopolyploids are unknown. Here, we show differential regulation of a miR163-mediated pathway in allotetraploids and their progenitors, Arabidopsis thaliana and Arabidopsis arenosa. miR163 is a recently ...

Allopolyploidy is a significant evolutionary process, resulting in new species with diploid or greater chromosome complements derived from two or more progenitor species. We examined the chromosomal consequences of genomic merger in Arabidopsis suecica, the allotetraploid hybrid of Arabidopsis thaliana and Arabidopsis arenosa. Fluorescence in situ hybridization with centromere, nucleolus organi...

A vector derived from an original infectious clone of Turnip mosaic potyvirus (TuMV) has been developed. The vector (p35Tunos-vec01) was made through the creation of a new unique insertion site for foreign genes between the NIb and the CP genes of the viral genome. The jellyfish Green Fluorescent Protein (GFP) and E. coli β-glucuronidase (GUS) were expressed in Arabidopsis thaliana plants infec...

Plants activate glutathione (GSH)-dependent detoxification pathways at biochemical and molecular levels under boron (B) toxicity. Sulfate uptake transport are necessary for GSH biosynthesis in plants. Therefore, the transcriptional regulation of some sulfate transporters was determined this study to clarify importance these leaf root tissues Arabidopsis thaliana toxic B conditions. The expressi...

UNLABELLED • PREMISE OF THE STUDY Cold tolerance is a critically important factor determining how plants will be influenced by climate change, including changes in snowcover and extreme weather events. Although a great deal is known about cold tolerance in Arabidopsis thaliana, it is not highly cold tolerant. This study examined cold tolerance and its genetic diversity in an herbaceous subarc...

In this study we describe a method for the detection of biomolecules (in polypeptide m/z range) directly from surface plant leaves by using Mass Spectrometry Imaging. The plant-pathogen interaction between Arabidopsis thaliana and bacterium Xanthomonas campestris pv. was analyzed comparing infected non-infected leaf discs submitted to mass spectrometry. total area ion distribution calculated bo...