Secondary growth in a typical dicotyledonous stem, Biology

Secondary Growth in a Typical Dicotyledonous Stem

In stem, the secondary growth in thickness in diameter is confined both intrastelar, i.e., in the stele and extrastelar regions. The cells that make secondary tissues are generated by lateral meristems. The lateral meristems grow and join to make a circular ring known as the vascular cambium which lays down cells that become the secondary vascular tissues. In the stem, cells that are situated among the primary xylem and primary phloem in the, vascular bundles turns into meristematic and make part of the vascular cambium. Additional cells between the vascular bundles also become meristematic. Hence the vascular cambium can be seen in a cross section of the stem as a continuous ring of tissue, with the xylem and pith on the inside and phloem, cortex, and epidermis on the outside

 

1663_Secondary Growth in a Typical Dicotyledonous Stem.png

Figure: Diagrammatic Representation of Secondary Growth in a Typical Dicotyledonous Stem

Posted Date: 1/24/2013 3:17:42 AM | Location : United States







Related Discussions:- Secondary growth in a typical dicotyledonous stem, Assignment Help, Ask Question on Secondary growth in a typical dicotyledonous stem, Get Answer, Expert's Help, Secondary growth in a typical dicotyledonous stem Discussions

Write discussion on Secondary growth in a typical dicotyledonous stem
Your posts are moderated
Related Questions
Q. Define Osseointegration from patients, microscopic and biomechanical points of view. a) From the view of the patient . An implant fixture is osseointegrated if it provid


Define Conjugation in brief. A form of sexual reproduction in ciliates (Ciliophora). During conjugation two ciliate protozoans join and macronuclei disappears. After meiotic d

Q. Is the stage when an insect larva is within a cocoon a stage of total biological inactivity? The period when the larva is inside its cocoon is a time of intense biological a

Definition of osmosis A) The best explanation of osmosis is 'The movement of water from a dilute solution to a    concentrated solution across a partially permeable membrane'.

Q. What is plutonium reprocessing? Why is it a big environmental issue? The Plutonium is the highly radioactive chemical element produced from uranium by nuclear plants. The Pl

The goals of treating heart failure are relief of symptoms, improvement in   exercise tolerance, and reduction in the number of hospitalizations, decreasing morbidity and mortality

Q. What are Diastolic Compressive Forces? Coronary perfusion pressure equal to pressure gradient between the coronary arteries and the pressure in LV in diastole. When coronary

Many common methods are employed for the removal of impurities from water. Some of them are: Sedimentation Filtration Reverse osmosis Electro dialysis Aeration

Explain about functions of the lacrimal apparatus. Tear Secretion Aqueous tears are secreted by the main (reflex secretion) and accessory (basic secretion) lacrimal