Ethylene-Mediated Posttranscriptional Regulation in Ripening Avocado (Persea americana) Mesocarp Discs
نویسندگان
چکیده
منابع مشابه
Cytochrome P-450 from the Mesocarp of Avocado (Persea americana).
The microsomal fraction from the mesocarp of avocado (Persea americana) is one of few identified rich sources of plant cytochrome P-450. Cytochrome P-450 from this tissue has been solubilized and purified. Enzymatic assays (p-chloro-N-methylaniline demethylase) and spectroscopic observations of substrate binding suggest a low spin form of the cytochrome, resembling that in the microsomal membra...
متن کامل3-Oxoacyl-(acyl-carrier protein) reductase from avocado (Persea americana) fruit mesocarp.
The NADPH-linked 3-oxoacyl-(acyl-carrier protein) (ACP) reductase (EC 1.1.1.100), also known as 'beta-ketoacyl-ACP reductase', has been purified from the mesocarp of mature avocado pears (Persea americana). The enzyme is inactivated by low ionic strength and low temperature. On SDS/PAGE under reducing conditions, purified 3-oxoacyl-ACP reductase migrated as a single polypeptide giving a molecul...
متن کاملEthylene and Wound-Induced Gene Expression in the Preclimacteric Phase of Ripening Avocado Fruit and Mesocarp Discs.
Whereas intact postharvest avocado (Persea americana Mill.) fruit may take 1 or more weeks to ripen, ripening is hastened by pulsing fruit for 24 h with ethylene or propylene and is initiated promptly by cutting slices, or discs, of mesocarp tissue. Because the preclimacteric lag period constitutes the extended and variable component of the ripening syndrome, we postulated that selective gene e...
متن کاملThe Effect of Calcium on the Ripening of Avocado (Persea americana Mill.) Fruits
Treatment with calcium (0.1 M CaSO4, 0.1 M CaCl2) depressed respiration of avocado fruits during preclimacteric and climacteric phases. Na2SO4 was ineffective. Calcium not only inhibited respiration but delayed the onset of the climacteric and depressed the peak of ethylene production at the climacteric rise. Determinations of endogenous Ca confirmed that higher levels were positively correlate...
متن کاملPolyphenoloxidase and peroxidase in avocado pulp ( Persea americana Mill . )
The sensorial qualities, the nutritional value, and the large amount of vitamins of the avocado justify the expansion of the fruit consumption. The nutritional value of avocado is due to its high lipidic (8.4%) and proteic (1.2%) contents, which may reach 30% of its pulp. Due to its chemical composition it also becomes appropriate for industrial purposes (CANTO; SANTOS; TRAVAGLIN, 1980; TANGO; ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Plant Physiology
سال: 1993
ISSN: 0032-0889,1532-2548
DOI: 10.1104/pp.102.2.417