Polyamines mitigate the destructive impacts of salinity stress by enhancing photosynthetic capacity, antioxidant defense system and upregulation of calvin cycle-related genes in rapeseed ( L.).

Salinity is widespread environmental stress that poses great obstacles to rapeseed development and growth. Polyamines are key plant growth regulators that play a pivotal role in regulating salt tolerance. Rapeseed ( L.

Exogenous melatonin enhances the reactive oxygen species metabolism, antioxidant defense-related gene expression, and photosynthetic capacity of Phaseolus vulgaris L. to confer salt stress tolerance.

Melatonin (MT) has been reported to regulate certain plant physiological processes and promote tolerance to different environmental stresses such as salinity. Green bean (Phaseolus vulgaris L. cv.

Investigating molecular evolutionary forces and phylogenetic relationships among melatonin precursor-encoding genes of different plant species.

A total of 53 plant species accessions from different geographic regions, including four melatonin precursor-coding genes obtained from Arachis hypogaea (ASMT1, 2, 3 and T5H) underwent extensive molecular evolutionary analyses. Evolutionary relationships were inferred and showed that dichotomous bifurcating trees did not reflect the true phylogeny since reticulate events took place due likely to recombination. Thus, a phylogenetic network was reconstructed for each type of enzyme and highlighted the presence of such incompatibilities.

A Proteomic Approach to Investigate the Drought Response in the Orphan Crop Eragrostis tef.

The orphan crop, , was subjected to controlled drought conditions to observe the physiological parameters and proteins changing in response to dehydration stress. Physiological measurements involving electrolyte leakage, chlorophyll fluorescence and ultra-structural analysis showed tef plants tolerated water loss to 50% relative water content (RWC) before adverse effects in leaf tissues were observed. Proteomic analysis using isobaric tag for relative and absolute quantification (iTRAQ) mass spectrometry and appropriate database searching enabled the detection of 5727 proteins, of which 211 proteins, including a number of spliced variants, were found to be differentially regulated with the imposed stress conditions.

Molecular and biochemical characterisation of a novel type II peroxiredoxin (XvPrx2) from the resurrection plant Xerophyta viscosa.

A type II peroxiredoxin gene (XvPrx2) was isolated from a Xerophyta viscosa (Baker) cDNA cold-stress library. The polypeptide displayed significant similarity to other plant type II peroxiredoxins, with the conserved amino acid motif (PGAFTPTCS) proposed to constitute the active site of the enzyme. Northern blot analyses showed that XvPrx2 gene was stress-inducible in response to abiotic stresses while gel analyses revealed that XvPrx2 homologues exist within the X.

Boosting the globalization of plant proteomics through INPPO: current developments and future prospects.

The International Plant Proteomics Organization (INPPO) is a non-profit-organization consisting of people who are involved or interested in plant proteomics. INPPO is constantly growing in volume and activity, which is mostly due to the realization among plant proteomics researchers worldwide for the need of such a global platform. Their active participation resulted in the rapid growth within the first year of INPPO's official launch in 2011 via its website (www.