Enzymically active cell wall from ripe tomato (Lycopersicon esculentum Mill.) fruit pericarp release uronic acids through the action of wall-bound polygalacturonase. The potential involvement of products of wall hydrolysis in the induction of ethylene synthesis during tomato ripening was investigated by vacuum infiltrating preclimacteric (green) fruit with solutions containing pectin fragments ...

The interactive effects of aeration rate, storage temperature, harvest maturity, and storage duration on respiration and ripening of tomato fruits (Lycopersicum esculentum var. Roma) were studied. Slow aeration rate strongly reduced the climacteric but did not affect ripening. Low temperature slowed ripening and reduced respiratory rates, but low temperature did not delay attainment of the clim...

The antiprotozoal activity of newly synthesised compounds, all [1,2,4]triazolo [1,5a]pyrimidine derivatives, was tested against the protozoan parasites Trypanosoma cruzi, Leishmania donovani and Phytotmonas staheli. Six of these compounds significantly inhibited in vitro cell growth of the epimastigote forms of T. cruzi, and the promastigote forms of L. donovani and P. staheli. Some of the comp...

Twelve different tomato (Lycopersicum esculentum Mill.) genotypes were grown in a controlled greenhouse to determine the influence of genotype variation on the efficiency of nitrogen utilization and fruit yield. The results showed that the variation of genotype in tomatoes influences the utilization and assimilation of foliar NO3. The genotypes that proved highly efficient in this utilization w...

Tomato (Lycopersicum esculentum L.) is the most popular vegetable world-wide. Tomatoes crop and yield is suffered every year due to number of pathogenic diseases. Such diseases are caused by fungi, bacteria, viruses and nematode, develop through soil-borne, above-ground infections and in some instances are transmitted through insect feeding. Although some general review on the fungal diseases o...