External Morphological Characteristics for Periods during Pecan Microspore and Pollen Differentiation
نویسندگان
چکیده
منابع مشابه
Pollen Source and Grafting Effects on Morphological Characteristics and Lycopene Pigment of Tomato Fruit
To evaluate the effects of pollen source and grafting on morphological characteristics and color of tomatoes, different cultivars with various fruit colors were grown and investigated in three experiments. In the first experiment, the red sweet olive cultivar was used as female parent and yellow pear, violet cherry, yellow palm garden and orange olive cultivars were used as male parents. In the...
متن کاملChanges in External Egg Traits of Chickens during Pre- and Post-Molting Periods
481 fresh fertilized eggs of three Kurdish local chickens (Black with brown neck, White with shank feathering, and White with non-feathering shank) were collected at pre-molting (355 eggs) and post-molting (126 eggs) stages to evaluate external egg traits. A venine caliper was used to determine the length and breadth of eggs to calculate Shape index. Results indicated that egg weight increased ...
متن کاملExpression of b-galactosidase and b-xylosidase genes during microspore and pollen development
Tobacco (Nicotiana tabacum L.) microspores at the time of mitosis are characterized by the abundant occurrence of 92and 98-kDa glycoproteins (GP92 and GP98). GP92 is a soluble protein while GP98 is bound to the insoluble microspore fraction. Both glycoproteins were isolated by affinity chromatography and SDS– PAGE and analysed by MS. Peptide sequences were determined by l-HPLC/nano-ESI–MS/MS (e...
متن کاملBnMs3 is required for tapetal differentiation and degradation, microspore separation, and pollen-wall biosynthesis in Brassica napus
7365AB, a recessive genetic male sterility system, is controlled by BnMs3 in Brassica napus, which encodes a Tic40 protein required for tapetum development. However, the role of BnMs3 in rapeseed anther development is still largely unclear. In this research, cytological analysis revealed that anther development of a Bnms3 mutant has defects in the transition of the tapetum to the secretory type...
متن کاملMorphological changes of human mandibular bone during fetal periods.
Standardized photographs (lateral and basal view) of fetal mandibles (n = 80) were taken. Outline segments (from gnathion to condylion, on the coronoid process and from infradentale to gnathion in lateral view; and on the inferior margin in basal view) were analyzed into sine curves, according to Fourier series. Using the calculated Fourier coefficients, we statistically examined how mandibular...
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: Journal of the American Society for Horticultural Science
سال: 1992
ISSN: 0003-1062,2327-9788
DOI: 10.21273/jashs.117.1.190