Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Tapetum - Anther Wall Layers
Tapetum is the innermost and most important layer of the anther wall. It is generally composed of a single layer of cells. These cells completely surround the sporogenous tissue, and they attain maximum development when the sporogenous tissue is at the tetrad stage. The tapetum is of dual origin in most of the angiosperms; the cells of the outer side originate from the derivatives of the PPCs, while those of the inner portion originate from the cells of the connective. Usually tapetal cells of different origin also appear different in size and structure. Tapetum of dual origin is also known as dimorphic tapetum. In Alectra thomsoni, the tapetal cells on the outer side are much smaller than those on the inner side.
Figure: (a) Diagrammatic sketch of transverse section of an anther showing the position of tapetum. (b) A few cells enlarged to show the dense cytoplasm and multinucleate condition of the tapetal cells.
The field of dietetics can be related to: Nutrition care and intervention focused on the individual, and Nutrition care and intervention focused on the group.
What event marks the beginning of the menstrual cycle? What is the blood concentration of FSH, LH, estrogen and progesterone in this phase of the cycle? By convention the menst
Q. Illustrate Chromosome Structure? Cytologists have studied chromosome morphology and have pointed out that the most interesting feature about the chromosome structure is the
Is dwarf pampas grass invasive? No. the root system is shallow and extends only as far as the plant is large. Though if the irrigation system is installed poorly and the pipes
Explain the Properties of hydrolysed soy proteins Partially hydrolysed soy proteins possess good foam stabilization properties and can be used as whipping agents in combination
any interesting information about recombinent DNA
Q. Polyunsaturated Fatty Acids required for dyslipidemia? These are also liquid at room temperature. There are two main types of dietary PUFA's of significance: a) linol
Explain Casein Casein is an important example of protein, which can be boiled without apparent change in stability. The exceptional stability of casein makes it possible to boi
Q. How are the major classes of arthropods classified according to the presence of larval stage in their embryonic development? In crustaceans there are others with indirect an
Define Functions of Inorganic Phosphorus? The major functions of inorganic phosphorus include: a) Structural component of bones and teeth: Phosphorus is a part of calcium ph
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd