Molybdenum (mo), Biology

Assignment Help:

Molybdenum (Mo)

Mo is absorbed as molybdate (MOO2-4) ion by plants. Its uptake can be competitively reduced by SO2-4. The requirement of plants for Mo is very low. Mo is an essential component of two major enzymes, nitrogenase and nitrate reductase. The functional mechanism of both enzymes probably depends on valency changes of Mo.

The most important function of Mo in plant metabolism is in N assimilation. Mo deficiency resembles N-deficiency. Older leaves becoming chlorotic first, but in contrast to N-deficiency, necrotic symptoms rapidly appear at the leaf margins because of nitrate accumulation. In Cruciferae, in extreme deficiency of Mo, leaf laminae are not formed and only the mid rib is formed. The leaf thus appears like a whip and for this reason the deficiency is called 'Whip tail'.


Related Discussions:- Molybdenum (mo)

Competition - processes in succession , Competition - Processes in Successi...

Competition - Processes in Succession The aggregation of individuals in an area leads to inter specific and intra specific competition. The competition is usually for

Express the term in brief protonephridia., Express the term in brief - Prot...

Express the term in brief - Protonephridia. An osmoregulatory-excretory structure found in some invertebrates. Also known as a flamecell, this tubule is closed at its distal en

Define changes in body composition due to microgravity, Define Changes in B...

Define Changes in Body Composition due to Microgravity? Major stress in space is microgravity. Microgravity refers to an environment in which there is very little net gravitat

Define tuberculosis, Define tuberculosis Tuberculosis (TB) is still a p...

Define tuberculosis Tuberculosis (TB) is still a problem in the United States, even though the incidence continues to decline in most of the country. Treatment of TB can be div

What is meant by the expression infant mortality, What is meant by the expr...

What is meant by the expression 'infant mortality'? Infant mortality refers to the number of babies in a population who die at the age of 1 year or less. It is usually express

Agro industrial-oil seed meals as by-pass protein source, Oil Seed Meals as...

Oil Seed Meals as By-pass Protein Source The protein digestion in ruminants encompasses microbial transformation of dietary protein in the rumin. A varying portion of feed pro

What are heterochromatin and euchromatin, Chromatin is uncondensed nuclear ...

Chromatin is uncondensed nuclear DNA, the typical DNA morphology in interphase (the phase of the cell cycle in which the cells is not separating itself). In this phase of the cell

Synthesis of polyamine, Synthesis of Polyamine As the name of this cla...

Synthesis of Polyamine As the name of this class of compounds suggests, polyamines have several amino groups replacing hydrogen usually in alkyl chain e.g., putrescine is 1, 4

Illustrate pathology, Q. Illustrate Pathology? Following rheumatic feve...

Q. Illustrate Pathology? Following rheumatic fever, over next few years to decades, the typical funnel shaped mitral valve assumes a fish mouth appearance. During rheumatic fev

Which are the major positive ions found in living beings, Q. Which are the ...

Q. Which are the major positive ions found in living beings? The major cations found in living beings are the calcium cation (Ca++), the potassium cation (K+), the sodium catio

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

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!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd