ISSN:
1573-5087
Keywords:
Organ culture
;
tomato fruit
;
cell number
;
cell size
;
DNA content
Source:
Springer Online Journal Archives 1860-2000
Topics:
Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
Notes:
Abstract Tomato (Lycopersicon esculentum Mill.) fruits of the male sterile cultivar Pearson (MS35 BC4, 61) were transferred toin vitro culture during the cell division period. Fruits grownin vivo andin vitro were compared throughout their development according to various growth parameters: fresh and dry weight, cell number, cell diameter, and DNA and total protein content. In all cases, the values pertaining to fruits grownin vitro were significantly lower than theirin vivo counterparts. The final fresh weight of fruits transferred to culture 2, 5, or 10 days after pollination was only 0.7, 1.2, and 3.4%, respectively, of that of plant-grown fruits. The results indicate that the reduced fruit sizein vitro is related to the reduction in both cell number and cell size. It is interesting to note that the DNA content per cell increased 15-fold during the growth of the plant-grown fruits while this accumulation was only between 2-and 3-fold in all the cultured fruits. The time to first colour appearance of fruits cultured 2, 5, or 10 days after pollination was 196, 132 and 85%, respectively, of that of plant-grown fruits.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01806057
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