Auxin resistant 1 gene (AUX1) mediates auxin effect on Arabidopsis thaliana callus growth by regulating its content and distribution pattern.

Callus sustained growth relies heavily on auxin, which is supplied to the culture medium. Surprisingly, there is a noticeable absence of information regarding the involvement of carrier-mediated auxin polar transport gene in callus growth regulation. Here, we delve into the role of the AUXIN RESISTANT 1 (AUX1) influx transporter in the regulation of callus growth, comparing the effects under conditions of light versus darkness.

Function of Cajal Bodies in Nuclear RNA Retention in Leaves Subjected to Hypoxia.

Retention of RNA in the nucleus precisely regulates the time and rate of translation and controls transcriptional bursts that can generate profound variability in mRNA levels among identical cells in tissues. In this study, we investigated the function of Cajal bodies (CBs) in RNA retention in leaf nuclei during hypoxia stress was investigated. It was observed that in mutants with a complete absence of CBs, the accumulation of poly(A) RNA in the leaf nuclei was lower than that in wt under stress.

Salt stress and salt shock differently affect DNA methylation in salt-responsive genes in sugar beet and its wild, halophytic ancestor.

Here we determined the impact of salt shock and salt stress on the level of DNA methylation in selected CpG islands localized in promoters or first exons of sixteen salt-responsive genes in beets. Two subspecies differing in salt tolerance were subjected for analysis, a moderately salt-tolerant sugar beet Beta vulgaris ssp. vulgaris cv.

Choosing source of microorganisms and processing technology for next generation beet bioinoculant.

The increase of human population and associated increasing demand for agricultural products lead to soil over-exploitation. Biofertilizers based on lyophilized plant material containing living plant growth-promoting microorganisms (PGPM) could be an alternative to conventional fertilizers that fits into sustainable agricultural technologies ideas. We aimed to: (1) assess the diversity of endophytic bacteria in sugar and sea beet roots and (2) determine the influence of osmoprotectants (trehalose and ectoine) addition during lyophilization on bacterial density, viability and salt tolerance.

Transcriptome profiling and environmental linkage to salinity across Salicornia europaea vegetation.

Background: Salicornia europaea, a succulent obligatory halophyte is the most salt-tolerant plant species in the world. It survives salt concentrations of more than 1 M. Therefore, it is a suitable model plant to identify genes involved in salt tolerance mechanisms that can be used for the improvement of crops.

Salt stress vs. salt shock - the case of sugar beet and its halophytic ancestor.

Background: Sugar beet is a highly salt-tolerant crop. However, its ability to withstand high salinity is reduced compared to sea beet, a wild ancestor of all beet crops. The aim of this study was to investigate transcriptional patterns associated with physiological, cytological and biochemical mechanisms involved in salt response in these closely related subspecies.

Modeling of phytoextraction efficiency of microbially stimulated Salix dasyclados L. in the soils with different speciation of heavy metals.

Bioaugmentation of soils with selected microorganisms during phytoextraction can be the key solution for successful bioremediation and should be accurately calculated for different physicochemical soil properties and heavy metal availability to guarantee the universality of this method. Equally important is the development of an accurate prediction tool to manage phytoremediation process. The main objective of this study was to evaluate the role of three metallotolerant siderophore-producing Streptomyces sp.

Transcriptomic profiling of the salt stress response in excised leaves of the halophyte Beta vulgaris ssp. maritima.

Beta vulgaris ssp. maritima is a halophytic relative of cultivated beets. In the present work a transcriptome response to acute salt stress imposed to excised leaves of sea beet was investigated.

Removal of Phenol from Synthetic and Industrial Wastewater by Potato Pulp Peroxidases.

Plant peroxidases have strong potential utility for decontamination of phenol-polluted wastewater. However, large-scale use of these enzymes for phenol depollution requires a source of cheap, abundant, and easily accessible peroxidase-containing material. In this study, we show that potato pulp, a waste product of the starch industry, contains large amounts of active peroxidases.

Cloning and Expression Analysis of a Gene Encoding for Ascorbate Peroxidase and Responsive to Salt Stress in Beet ().

pAPX is a full-length cDNA-encoding peroxisomal ascorbate peroxidase isolated from leaves of salt-stressed beet () plants. A high level of identity has been reported between the deduced amino acid sequence of pAPX and other known ascorbate peroxidases. The genomic sequence of pAPX revealed a gene composed of 5 exons and 4 introns.

A role for redox factors in shaping root architecture under phosphorus deficiency.

The developmental response of the Arabidopsis root system to low phosphorus (P) availability involves the reduction in primary root elongation accompanied by the formation of numerous lateral roots. We studied the roles of selected redox metabolites, namely, radical oxygen species (ROS) and ascorbic acid (ASC) in the regulation of root system architecture by different P availability. Rapidly growing roots of plants grown on P-sufficient medium synthesize ROS in root elongation zone and quiescent centre.