Temperature-dependent Changes in the Polysomal Population of Senescent (Ripening) Pear Fruit.
نویسندگان
چکیده
A loss and recovery of polysomes coincident with the temperature-dependent interruption and resumption of pear fruit (Pyrus communis, L.) senescence establishes a close correlation between the presence of protein-synthesizing machinery and the progression of senescence and ripening.
منابع مشابه
Polyribosomes from Pear Fruit: Changes during Ripening and Senescence.
Polysome profiles were examined from lyophilized peel tissue of ripening pear (Pyrus communis, L. var. Passe-Crassane). Messenger RNA chains bearing up to eight ribosomes (octamers) were resolved and exhibited the highest absorption peak when ribonuclease activity was eliminated during extraction. Neither normal ripening nor the increase of large polyribosomes that normally accompanies ripening...
متن کاملUltrastructural changes in the cell walls of ripening apple and pear fruit.
Ultrastructural changes in the cell walls of "Calville de San Sauveur" apples (Malus sylvestris Mill) and "Spadona" pear (Pyrus communis L.) fruit were followed during ripening. In apple, structural alterations in cell walls became apparent at advanced stages of softening and showed predominantly dissolution of the middle lamella. In pears softening was also associated with the dissolution of t...
متن کاملEffect of Pomegranate, Grape and Kiwifruit Juice and Extract on Postharvest Quality of Intact Pear Fruits
Fruits and vegetables contain an array of antioxidant compounds. In this experiment, the effect of pomegranate, grape and kiwifruit juice or extract viz., pomegranate husk on pear fruits were investigated and compared with chitosan 1.5% and distilled water (control). The changes in the ascorbic acid, total soluble solids, total acid, weight loss, firmness and peroxidase and polyphenol oxidase a...
متن کاملMetabolic Profiling of Developing Pear Fruits Reveals Dynamic Variation in Primary and Secondary Metabolites, Including Plant Hormones
Metabolites in the fruits of edible plants include sweet sugars, visually appealing pigments, various products with human nutritional value, and biologically active plant hormones. Although quantities of these metabolites vary during fruit development and ripening because of cell division and enlargement, there are few reports describing the actual dynamics of these changes. Therefore, we appli...
متن کاملEffect of ethylene and temperature conditioning on sensory attributes and chemical composition of 'Comice' pears.
'Comice' is among the pear varieties most difficult to ripen after harvest. Ethylene, cold temperature, and intermediate (10 °C) temperature conditioning have been successfully used to stimulate the ability of 'Comice' pears to ripen. However, the sensory quality of pears stimulated to ripen by different conditioning treatments has not been evaluated. In this study, a descriptive sensory analys...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- Plant physiology
دوره 60 6 شماره
صفحات -
تاریخ انتشار 1977