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Enrico Schleiff - One of the best experts on this subject based on the ideXlab platform.

  • The protein translocation systems in plants – composition and variability on the example of Solanum Lycopersicum
    BMC genomics, 2013
    Co-Authors: Puneet Paul, Stefan Simm, Andreas Blaumeiser, Klaus-dieter Scharf, Sotirios Fragkostefanakis, Oliver Mirus, Enrico Schleiff
    Abstract:

    Background Protein translocation across membranes is a central process in all cells. In the past decades the molecular composition of the translocation systems in the membranes of the endoplasmic reticulum, peroxisomes, mitochondria and chloroplasts have been established based on the analysis of model organisms. Today, these results have to be transferred to other plant species. We bioinformatically determined the inventory of putative translocation factors in tomato (Solanum Lycopersicum) by orthologue search and domain architecture analyses. In addition, we investigated the diversity of such systems by comparing our findings to the model organisms Saccharomyces cerevisiae, Arabidopsis thaliana and 12 other plant species.

Mikal E. Saltveit - One of the best experts on this subject based on the ideXlab platform.

Sunghun Park - One of the best experts on this subject based on the ideXlab platform.

  • Expression of a monothiol glutaredoxin, AtGRXS17, in tomato (Solanum Lycopersicum) enhances drought tolerance.
    Biochemical and biophysical research communications, 2017
    Co-Authors: Stuart A. Sprague, Tayebeh Kakeshpour, Jungeun Park, Paul A. Nakata, Ninghui Cheng, Kendal D. Hirschi, Frank F. White, Sunghun Park
    Abstract:

    Abiotic stresses are a major factor limiting crop growth and productivity. The Arabidopsis thaliana glutaredoxin S17 (AtGRXS17) gene has conserved functions in plant tolerance to heat and chilling stress in Arabidopsis and, when expressed ectopically, in tomato. Here, we report that ectopic expression of AtGRXS17 in tomato also enhanced tolerance to drought and oxidative stress. AtGRXS17-expressing tomato plants contained twice the shoot water content compared to wild-type plants under water limiting conditions. This enhanced drought tolerance correlated with a higher maximal photosynthetic efficiency of photosystem II (Fv/Fm). Ectopic AtGRXS17-expression was concomitant with the expression of Solanum Lycopersicum catalase 1 (SlCAT1) and mitigated defects in the growth of primary roots in response to methyl viologen exposure. In addition, AtGRXS17 expression was found to prolong elevated expression levels of the Solanum Lycopersicum ABA-responsive element binding protein 1 (SlAREB1) during drought stress. The findings demonstrate that expression of AtGRXS17 can simultaneously improve the tolerance of tomato, and possibly other agriculturally important crops, to drought, heat, and chilling stresses.

Amitava Paul - One of the best experts on this subject based on the ideXlab platform.

  • Studies on Heterosis in Tomato (Solanum Lycopersicum)
    International journal of Bio-resource and Stress Management, 2012
    Co-Authors: Aditi Chattopadhyay, Amitava Paul
    Abstract:

    Throughout the last century, tomato (Solanum Lycopersicum) breeding has been based on various standard methods, which has ultimately resulted in the development of improved tomato cultivars and hybrids having high quality and yield attributes. In the present study, a total of 25 entries consisting of 13 diversified genotypes of tomato along with their 12F1 hybrids were evaluated during two consecutive rabi seasons. Data on quantitative characters were recorded and percent mid-parent heterosis and better-parent heterosis were determined. Pronounced heterosis over better-parent was observed for fruit yield plant−1(148.82%), fruiting clusters plant−1(111.64%), fruits plant−1 (103.33%), fruit weight(62.79%) and plant height(50.57%). The expression of fruit yield heterosis in the best crosses was realized through differential expression of heterosis in various yield contributing traits. Selection of crosses on the basis of performance per se seems to be reliable than selection based on the manifestation of heterosis alone.

Twisha Chakravarty - One of the best experts on this subject based on the ideXlab platform.