نتایج جستجو برای: anther development
تعداد نتایج: 1416808 فیلتر نتایج به سال:
Hymenocallis littoralis has allelochemical importance such as defensive compounds, insect repellents, attractants, and their role in ecological balance. Antioxidant activities of Hymenocallis littoralis bulb, anther, flower, stem, leaves and root methanolic extracts were evaluated using Ferric Reducing Antioxdiant Power (FRAP), 2,2-diphenyl-1-picrylhydrazyl (DPPH), total phenolic and flavonoid ...
An anther includes sporophytic tissues of three outer cell layers and an innermost layer, the tapetum, which encloses a locule where the gametophytic microspores mature to become pollen. The sporophytic tissues also comprise some vascular cells and specialized cells of the stomium aligning the long anther axis for anther dehiscence. Studies of the anther sporophytic cells, especially the tapetu...
the objective of this study was to estimate genetic parameters and to investigate the type of gene action in controlling androgenesis in wheat. two wheat cultivars of grebe and houtman were reciprocally crossed with two synthetic genotypes of do1 and pol and then a complete set of the parents, f1, reciprocal f1 (rf1), f2 and back-cross generations (bc1 and bc2) of each cross were used for anthe...
Brassinosteroids play diverse roles in plant growth and development. Plants deficient in brassinosteroid (BR) biosynthesis or defective in signal transduction show many abnormal developmental phenotypes, indicating the importance of both BR biosynthesis and the signaling pathway in regulating these biological processes. Recently, using genetics, proteomics, genomics, cell biology, and many othe...
Haploidy method through androgensis is highly important in breeding of many plants. However, this method has not been successful in rose breeding, so far. In this research the responses of two rose species (Rosa damascena Mill. and Rosa hybrida) to anther culture were investigated by using some thermal and chemical pre-treatments. Results showed that the anthers cultured in early to mid-uninucl...
Meiosis is a central feature in the reproductive program of plants and all other sexually reproducing eukaryotes. In plants such as Arabidopsis thaliana, reproduction initiates during the development of the male (anther) and female (ovule) reproductive structures from somatic tissue. During anther development, a group of cells differentiate to form archesporial cells, which in turn give rise to...
Anther cultures have been developed from transgenic donor peppers carrying HPT/J1-1. Eight out of sixteen plants produced from an anther culture set pepper fruits. Southern blot analysis of donors revealed two independent plants with a single copy of the integrated transgene. PCR and RT-PCR results showed the inheritance of HPT/J1-1 and expression of J1-1 in A1. All A1 progeny derived from tran...
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