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!
Lateral Roots - Root Apex
Lateral roots normally arise at a definite distance behind the tip from areas close to or opposite the points of xylem star. So, a triarch root can have 3 rows of lateral roots and a tetrarch root four rows of lateral roots. It is interesting to look at the growth of lateral root primordia through the tissue of parent root. In gymnosperms and angiosperms the lateral roots are generally initiated in the pericycle. Primordia are formed by the periclinal and anticlinal divisions of groups of pericycle cells.
According to one view growing primordia partially 'digest' the tissues of cortex through which they pass. Another view point is that this process of penetration is essentially a mechanical one i.e. growing lateral roots essentially push through the tissues of the cortex. Relatively low concentrations of auxins and high concentrations of cytokinins near the tip inhibit lateral root formation (auxins are produced in shoot apex and are transported basipetally and cytokinins are synthesized in the root tip also). As the auxin concentration rises (as we go up) lateral root formation is induced.
define histon protein?
What is End-to-End Anastomosis with Subclavian Flap Aortoplasty ? The two operations can be combined as a single procedure. Medially end-to-end anastomosis is done between the
What is the endocrine function of the placenta? The placenta is not a permanent gland of the endocrine system but it also has endocrinal function. The placenta produces estroge
describe in details charateristics of two sub phyla of phylum anthropoda
harmful and benificial microbes
Determine the Food Sources of Folate? Folate occurs naturally in foods. Although folate is found in a wide variety of foods, it is present in a relatively low density except i
What does a two-direction arrow show in a chemical equation? The oxygen atoms share two pairs of electrons, as every atom needs two more electrons to fill the orbitals of its o
Animals of Estuaries The animals of estuaries and related wetlands such as marshes and swamps are tremendously important not only as denizens of their environment but also for
explain nature of plasma membrane?
Oxygen concentration When oxygen is abundant, the rate of oxidation is independent of oxygen concentration, but at very low oxygen concentration, the rate is approximately prop
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