pollen mother cells
EMS induced mutagenicity in pollen mother cells of Sesbania Pea (Sesbania cannabina Poir.)
... of pollen mother cells of control exhibited a normal diploid status with chromosome number (n = 12) ...stages, pollen mother cells, displayed various types of aberrations such as ...
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A CYTOLOGICAL STUDY OF MEIOSIS IN THE POLLEN MOTHER CELLS OF SOME OENOTHERAS
... rubrineruis that I have found for this supposed deserens.. apparently are moving toward the same pole, but such behavior is very rarely seen. decipiensXgrandiflora)Fz use[r] ...
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A modified method for preparing meiotic chromosomes based on digesting pollen mother cells in suspension
... Interference from the cytoplasm in maize spreads was more obvious than that in the other two plants. This may be because the cytoplasm in maize PMCs was originally thick. However, the thick cytoplasm did not affect ...
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MEIOSIS IN THE POLLEN MOTHER CELLS OF OENOTHERA BIENNIS AND OENOTHERA BIENNIS SULFUREA
... All the chromosomes, despite their being in two circles, will act in heredity as though they were linked, in view of the fact that alternate chromosomes are as a ru[r] ...
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Meiotic Studies in Some Medicinal Angiosperms from Doaba Region of Punjab, India
... It is an annual herb of family Ranunculaceae and commonly known as Larkspur. It bears deep purple flowers on the long spike. Spur, a modification of petal is the most attractive part of flower. Arial parts are used as ...
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EFFECT OF SEED TREATMENTS WITH X-RAY AND PHOSPHORUS 32 ON TOMATO PLANTS OF FIRST, SECOND, AND THIRD GENERATIONS
... All of the plants which grew from wet-treated seeds were diploid, having 24 chromosomes. Four plants had very few pollen mother cells and these remained in masses [r] ...
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Studies in the cytology and physiology of pollen
... It is associated with pollen at different developmental stages: it covers the naked pollen mother cells after wall loss, forms the initial walls of the tetrads, and the transient wall of[r] ...
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Film antitranspirants to increase yield of droughted wheat
... Antitranspirants are important to increase plant water potential at a time when plant yield is more dependent on water status than on photosynthesis. The relative importance of optimum plant water potential and the ...
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AN ELECTRON MICROSCOPE STUDY OF ISOLATED CHROMOSOMES
... That one (Plate VIII, fig. 66) shows that the structure of the pachy- tene chromosome of Lilium pollen mother cells is not very different from the structure of the resting c[r] ...
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HETEROMORPHIC A CHROMOSOMES OF THE TOMATO DIFFERING IN SATELLITE SIZE
... A study of diakinesis in pollen mother cells of some of the trisomic types has shown that the H chromosome is one of the two small- est, whereas the short A, and the B, I, and[r] ...
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SOMATIC VARIATION OF CHROMOSOME NUMBERS IN HYBRID WHEATS
... HOLLINGSHEAD (1932) reported the rare occurrence of one or a small group of pollen mother-cells with less than the normal number of chromo- somes in Marquillo and in a hy[r] ...
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CYTOLOGICAL STUDIES IN THE GENUS NICOTIANA
... Second, and this is my critical point, in certain hybrids with species having 10 chromosomes as the haploid number, the reduction division of the pollen mother cells shows the number[r] ...
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THE CHROMOSOME NUMBER OF MAIZE
... Crushing the pollen mother cells as suggested by BELLING was resorted to only in cases where they showed less than the normal number of chromosomes, to see if such cases[r] ...
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CYTOLOGICAL AND GENETIC STUDIES ON FRAGARIA
... All of the six species of this group which were investigated have 7 pairs of chromosomes in the pollen mother cells.. No irregular behavior of the chromosomes in the [r] ...
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Chromosome Numbers of Spermatophytes, Mostly Californian
... It was difficult to be absolutely certain of the chromosome number in this and the following species, which have very few pollen mother cells and are probably [r] ...
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Plant Notes rev 05-06.doc
... divides mieotically to become a megaspore (only one of the 4 haploid cells survives). This megaspore divides mitotically to produce a large immature gametophyte within the nucellus mass; within the megaspore, two ...
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Intestinal allergic inflammation in birch pollen allergic patients in relation to pollen season, IgE sensitization profile and gastrointestinal symptoms
... mast cells tryptase (EC ...stained cells were counted by using a computer supported image analysis system Leica Q500MC (Leica, Cambridge, United ...Kingdom). Cells in at least five 200 × fields from ...
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Th17 responses are not altered by natural exposure to seasonal allergens in pollen-sensitive patients
... T cells expressing CD45RO is associated with a decrease in percentage, but not in the absolute num- ber of CD4+ CD45RO positive cells when compared with healthy controls ...positive cells between ...
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In-silico models of stem cell and developmental systems
... the mother cell gives rise to two identical cells, whereas, an asymmetric proliferation decision im- plies that the mother cell give rise to one identical cell and one differentiated ...that ...
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EMPOL 1.0: a new parameterization of pollen emission in numerical weather prediction models
... of pollen concentrations: Roberto Albertini (Laboratory of Allergology, Department of Clinical and Experimental Medicine, University of Parma, Italy), Uwe ...Network Pollen Database (EAN) for giving us ...
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