plant anatomy

Plant Anatomy

This includes – 1) definition 2) Tissue 3) Meristematic tissue 4) permanent tissue.

Plant Anatomy – It is the study which deals with internal structure of plant part or plant body.

Tissue – Group of cells have same origin and may have same function

There are mainly two types of tissue which are –

I)Meristematic Tissue

II)Permanent tissue

I) Meristematic tissue – The tissue which are continuously divide and re- divide .

They are subdivided due to following categories

· Time of formation

1. primary meristem

2.Secondary meristem

· Their position

1.Apical meristem – present on apices, apical bud

2.Lateral meristem- present on lateral side

3. Intercalary meristem – present between permanent tissue.

II) Permanent tissue- The tissue which do not divide and fix, divide only when necessary, only parenchyma cells divides.

They are furtherly classified into following categories

1.Simple – only one type of cells present . Simple tissue furtherly sub divided into a.epidermal and b. ground tissue.

a) Epidermal tissue – present on upper side .

b)Ground tissue – present in between vascular tissue and epidermis may present in cortex region.

They furtherly classified into 3 sub- categories

i)Parenchyma

ii)collenchyma

iii)sclerenchyma

2.complex- more than one type of cells present. Complex tissue furtherly divided into a) xylem and b) phloem

a) xylem – meant for conduction of water.

b) Phloem- meant for conduction of food.