Question

plzz explain types of trichomes??​

Answer 1

Answer:

1 ) Glandular trichomes - These types of trichomes are known to secrete various substances including water,nectar,resins,mucilage and terpens among others. Apart from their capacity to secrete , glandular trichomes can also be grouped in accordance to the number of cells

• It is the term used to refer to an array of glands

There are both unicellular and multicellular glandular trichomes. moreover they can also be uniseriate( they are arranged in single series or layer ) on multiseriate (arranged in several series )

unicellular glandular - for this types of hairs , it's possible to see morphological differences between apical and basal part of the cells. they may also occur branched or unbranched

Multicellular glandular- these types of trichomes appear as outgrowths of the epidermis with the head consisting of cells that secrete and store great amounts of specialised metabolites

Examples - Saltbush (Atripex) secretes water

Docks and sorrels - secretes water

basil plants - secrete lipids

2)Non glandular trichomes - the non glandular trichomes vary in Anatomy, morphology and microstructure. despite this diversity they are mostly grouped on the basis of their morphology.

like the Glandular trichomes ,Non glandular trichomes also exist as either unicellular or multicellular . however they can also exist as branched or unbranched a majority of these have been shown to be unbranched, simple and shape like a star . as for the unbranched, non glandular trichomes, they can exist as uniseriate ,biseriate, multiseriate. they also vary in shape, size and length and can be found in a variety of plants.

different types of non glandular trichomes can be found in different locations of a single plant. for instance whole some of these can be found on the leaf of the plant (unicellular non glandular trichomes on coridothymus capitatus ) two celled trichomes can be located at the base of abaxial side of the leaf.

the followings are the examples of non glandular trichomes :

•gossypium with vesicular hair( non flattened )

•styrax

•T shaped Corokia

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