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!
Closed Style - Style of Stigma Interaction
Cotton shows an epidermis with stomata, a cortex of thin-walled parenchyma with several vascular bundles and strands of transmitting tissue. The cells of transmitting tissue have thin transverse walls but lateral walls are thick and consist of several distinct and concentric layers. The innermost wall layer 1, is composed of pectic substances and hemicellulose, surrounding this is wall layer 2 which is darker, thinner and similar to wall layer 1 -in composition with a large hemicellulose content. Wall layer 3 is loosely textured rich in pectin substances and contains small amounts of noncellulosic polysaccharides and cellulose but poor in hemicellulose. Wall layer 4 is represented by the middle lamella region and is primarily pectic in nature.
Small amounts of protein is also present in layers 3.4 (3 also contains masses of small vesicles). The cells of transmitting tissue contain many mitochondria and active vesicles forming dictyosomes. The plastids are large with numerous amyloplasts, polysomes and abundant rough ER. Transmitting tissue cells have a spherical or slightly ellipsoidal vacuole. Nuclei are large and frequently lobed indicating their active metabolic state. EM studies of transmitting tissue in Petunia, Lycopersicon and Nicotiana and some other taxa show that the cells in general have thin walls traversed with plasmodesmata.
#quesWhat benefits can commensalism offer to a species..
DIVERSITY OF AMPHIBIANS ASSIGNMET IN BIOLOGY PLWASE HELP ME TO DO THIS ASSIGNMENT AND I CAN GET GOOD MARKS IN THIS ASSIGNMENT SO GIVE ME TNE ASSIFNMENT OF THIS TOPIC DIVERSITY OF A
PROS T AGLANDIN S (PGS) - Because they were first found in semen (which is produced partly by the prostate gland), they were named prostaglandins. Prostaglandins are d
PKU is a recessive disorder. Suppose two people who were heterozygous for PKU married and had a child. What is the probability that the child will have PKU?
Define Classification of Carbohydrates? Carbohydrates are defined as polyhydroxy aldehydes or ketones or substances that produce such compounds when hydrolyzed. Carbohydrates a
What are the four characteristics that all chordates have at some stage of their lifecycle ?
What is cell cycle? Cell cycle, or mitotic cycle, is the time period that starts when the cell is formed and finishes when it is divided by mitosis making two daughter cells. T
Energy Metabolism In the preceding sections of the unit, you studied how the products of digestion of food, viz: amino acids, sugars and fatty acids are absorbed and transport
heart beat
a_molecule can be dissolved in water solution but a _molecule does not mix with water
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