Abstract
Microsporogenesis and anther development in Iphigenia pallida Bak. were investigated using the cytochemical staining methods for the demonstration of insoluble polysaccharides, RNA, proteins and DNA. The insoluble polysaccharides and proteins are at low level in sporogenous tissue and PMCs. Both of them gradually increase in dyads, tetrads and microspores. Large number of starch grains appearing in the-vegetative cell of the young 2-celled pollen grain disintegrate and form densely PAS positive cytoplasm in the shedding pollen grain. A protein and PAS positive layer deposited internally around the PMCs at the beginning of meiosis, disappears prior to the separation of microspores from the tetrads. The cytoplasm of PMCs, dyads, tetrads, microspores and pollen grains is rich in RNA. The nucleus of the generative cell is more Feulgen positive than that of the vegetative cell. The tapetal cells have rich RNA and considerable concentration of proteins as well as polysaccharides. The fibrous endothecial thickenings are lignified.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
