Researchers Analyze Stress-sensitive Proteins in Broccoli During Post-harvest AgingJuly 29, 2011
In a previous study, it was observed that transgenic tobacco that harbored the bacterial isopentenyltransferase (ipt) gene exhibited delayed post-harvest aging. To further investigate this occurrence, Mao-Sen Liu of Academia Sinica in Taiwan and colleagues conducted a proteomic analysis of heads of ipt-transgenic and non-transgenic inbred lines of broccoli at harvest and after four days post-harvest storage.
Results showed that at harvest, there was accumulation of stress-sensitive proteins involved in the maintenance of protein folding, scavenging of reactive oxygen species, and stress protection. Four days after the harvest, the levels of proteins involved in protein folding and carbon fixation decreased significantly, which indicates that cellular degradation and alteration in metabolism have occurred towards senescence.
Based on the findings, the accumulation of stress-sensitive proteins and antioxidant enzyme in ipt-transgenic broccoli are related with delay of post-harvest senescence.
Read the abstract at http://www.sciencedirect.com/science/article/pii/S0168945211001683.
See more articles:
News from Around the World
- Strategies to "Freeze the Footprint of Food"
- Kenya Pushes Through GM Cotton Plans
- Africa Needs to Increase S&T Investment
- USDA Reopens Comment Period for Draft EA for Drought Tolerant Corn
- US EPA Approves Syngenta's Dual Modes of Insect Protection with Five Percent Refuge
- Genomics Institute to Offer Remote Data Service
- CSIRO Researchers Develop Crops for the Changing Climate
- Expert Says GM Risk Communication in China Should Be Strengthened
- Reduced Pesticide Poisoning Observed Among Cotton Growers
- Pakistan Needs to Collaborate with China on Agriculture
- Pakistan Seed Board Approves New Seed Varieties
- Gene Discovery in Wild Barley May Lead to Stress Tolerant Crops
- Second Confined GM Field Tests Approved in Miyazaki University
- GM Crops are Essential Innovation in Japanese Agriculture, says JBA President
- GM Drug Trials Starts in UK
- Field Trials Destroyed in Germany
- Andalusian Farmers and Government Officials Want Biotech Crops
- Barley Defense System Against Powdery Mildew
- Scientists Investigate Effect of Rice Sucrose Transporters on Potato Starch Yield
- Over-expression of Plasma Membrane Protein Gene Enhances Cold-resistance in Tobacco
- Researchers Analyze Stress-sensitive Proteins in Broccoli During Post-harvest Aging
Beyond Crop Biotech
- Molecular Portrait Reveals Cell Signaling Activity
- Purdue Biologists Elucidate Bacterial Infection
- Center for Transgenic Mouse Research
- BIO Releases Second Edition of GE Animals Benefits Study
- Asian Food Security Conference in Singapore
- Food and Nutrition in the 21st Century, Warsaw, Poland
- Biotech Country Facts and Trends
- COMSTECH Website
Subscribe to CBU: