Dry stigma - category of stigma, Biology

Assignment Help:

Dry Stigma - Category of Stigma

The Cotton (Gossypium hirsutum) stigma is covered with long unicellular hairs. At the time of pollination, the stigmatic hairs show a distinct and continuous cuticle which is closely pressed to the thin wall. The pellicle that represents extracellular proteins are present on the dry stigma. In addition, the stigmatic surface also carries lipids and phenolic substances. Immediately below are several layers of a thin-walled parenchymatous tissue with large intercellular spaces. The size of the intercellular spaces gradually decreases until no such space is present and the cell wall thickens with heavy pectin content. This tissue provides a connecting link with the transmitting tissue.


Related Discussions:- Dry stigma - category of stigma

Define classification of ventricular septa1 defect, Q. Define Classificatio...

Q. Define Classification of Ventricular Septa1 Defect? VSD can be found in various part of ventricular septum hence all possible views except suprasternal views are used to

What is the definition of ecology explain, What is the Definition of Ecolog...

What is the Definition of Ecology explain? Scientists use the term ecology to refer to the study of the relationships between organisms, and the relationships between organism

Define observation or inference for fehling's test, Define Observation or I...

Define Observation or Inference for fehling's test? An insoluble reddish brown precipitate of cuprous oxide will be obtained. The reddish brown precipitate indicates the presen

Ascaris.., what is the mode of nutrition of ascaris

what is the mode of nutrition of ascaris

Virus, whats ur clear definition of virus

whats ur clear definition of virus

Use of toxic amino acids, Q. Explain Use of Toxic amino acids? Lathyru...

Q. Explain Use of Toxic amino acids? Lathyrus sativus (kesari dhal) seeds contain toxic amino acid beta-oxalyl aminoalanine (BOAA), is considered to be responsible

Shapes - types of nursing units, Shapes: Nightingale Ward  In the 1...

Shapes: Nightingale Ward  In the 1940s,  this traditional nursing unit was based on  the long rectangle pavilion type ward and self-contained unit. This concept is establis

Define protection of poly unsaturated fatty acids, Define Protection of pol...

Define Protection of poly unsaturated fatty acids (PUFA) from oxidative damage? The major biological role of vitamin E is to protect PUFAs and other components of cell membrane

What is biotechnology, What is biotechnology? The Biotechnology is the ...

What is biotechnology? The Biotechnology is the application of biological knowledge to obtain new techniques, materials and compounds of pharmaceutical, medical, agrarian, indu

Explain guar gum, Guar Gum Guar Gum is derived from seed of legume Cyam...

Guar Gum Guar Gum is derived from seed of legume Cyamopsis tetragonalobus resembling soyabean plant. Guar gum is composed of Galactomannan Galactose: mannose in the ratio 1:2.

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