نتایج جستجو برای: fruit softening
تعداد نتایج: 75820 فیلتر نتایج به سال:
fruit browning and tissue softening due to damages during handling, quality losses and water loss are the major limiting factors reducing postharvest life of early ripening apples. in this study, the effect of salicylic acid (sa) on fruit quality of apple cv ‘golabe-kohanz’ during postharvest life were investigated. harvested fruits were immersed in zero, one, two and four mm sa and were mainta...
Stable transformation of tomato (Lycopersicon esculentum cv Ailsa Craig) plants with a construct containing the antisense sequence for the receiver domain and 3'-untranslated portion of the tomato ethylene receptor (LeETR1) under the control of an enhanced cauliflower mosaic virus 35S promoter resulted in some expected and unexpected phenotypes. In addition to reduced LeETR1 transcript levels, ...
Pectinesterase (PE; E.C. 3.1.1.11) is an enzyme responsible for the demethylation of galacturonyl residues in high-molecular-weight pectin and is believed to play an important role in cell wall metabolism. In this study, Pmeu1, a ubiquitously expressed PE gene, has been characterized by antisense suppression in tomato (Solanum lycopersicum). Transgenic tomato plants showed reduced PE activity l...
During ripening, fleshy fruits undergo textural changes that lead to loss of tissue firmness and consequent softening. It is a common idea that this process is the consequence of cell wall dismantling carried out by different and orderly expressed enzymes. For this purpose, by using a single enzyme family approach many enzymes and related genes have been characterized in different fruits. In th...
BACKGROUND Some European pear varieties treated with 1-methylcyclopropene (1-MCP) often remain 'evergreen', meaning that their ripening process is blocked and does not resume after removal from cold storage. In this work this was confirmed also to be the case in 'Conference' pears. To reverse the blockage of ripening 1-MCP treatments combined with external exogenous ethylene were tested. RESU...
In plants, microRNAs (miRNAs) play essential roles in growth, development, yield, stress response and interactions with pathogens. However no miRNA has been experimentally documented to be functionally involved in fruit ripening although many miRNAs have been profiled in fruits. Here we show that SlymiR157 and SlymiR156 differentially modulate ripening and softening in tomato (Solanum lycopersi...
Peach softening is usually attributed to the dismantling of the cell wall in which endo-polygalacturonase (endo-PG)-catalysed depolymerization of pectins plays a central role. In this study, the hypothesis that the function of endo-PG is critical for achieving a melting flesh fruit texture but not for reducing fruit firmness was tested by comparing pericarp morphology and endo-PG expression and...
esterase in the cucumber. Arch. Biochem. Biophys., 31, 431-441. BELL, T. A., ETCHELLS, J. L., AND JONES, I. D. 1955 A method for testing cucumber salt-stock brine for softening activity. U. S. Dept. Agr., ARS-72-5, 1-15. BELL, T. A. AND ETCHELLS, J. L. 1956 Pectin hydrolysis by certain salt-tolerant yeasts. Appl. Microbiol., 4, 196-201. DEMAIN, A. L. AND PHAFF, H. J. 1957 Recent advances in the...
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