PRIMARY GROWTH IN STEM
sanaPrimary growth takes place by the activity of apical meristematic cells of stem. Primary growth passes through following phases. Phase of Cell division: The numbers of cells are increased by…
TYPE 2: PUCCINIA (Rust)
abidaOccurrence Puccinia is large genus. It has several obligatory parasitic species.tritici is a parasite of wheat. It completes its life cycle in two different hosts: wheat and barely. Thus it…
Structure of Stem (Parts of Stem)
The internal structure of the stem is more complex. Stem is differentiated into nodes and internodes. The leaves are inserted on the nodes. The arrangement of leaves on the 'nodes…
BASIDIOMYCOTAi
TYPE 1: USTILAGO (Smut) Occurrence Usti.ago is parasite on the grasses like wheat. It is commonly called smut. It attacks on the ovaries of grasses. Sometimes, it completely destoy the…
PHYLLACTINIA (Only for B.S.)
Scientific classification Kingdom: Fungi Phylum: Ascomvcota Class: Leotionmetes Subclass: Leotiomvcetidae Order: Erysinhales Family: Ervsimhaceae Genus: Phyllactinia Occurrence There are number of species of genus Phyllactinia. P. dalbergiae is commonest…
Secondary Growth of Root
The roots increase in thickness by the formation of secondary vascular tissues. The secondary vascular tissues are produced by the activity of the vascular cambium. It produces the secondary xylem…
TYPE 3: ALTERNARIA
Occurrence AItemaria is a very common saprophytic fungus. It decomposes the dead part of the plants. A few species of Altemaria can attack on living tissues. Alternaria causes diseases in…
Structure of Root
The root is underground part of the plant. It anchors the plant in the soil. It is also used to absorb Water and minerals from the soil. .1-he root structure…
TYPE 2: SACCHAROMYCES (Yeast)
Yea ds are common in soil and on decay fruits. Yeasts are found in ails substrates which are rich in sugary substance. Yeast has great industrial importance. They are used…
Tissue & tissue system of plant anatomy
sidraTissues The group of cells performing some collective function is called tissue. Tissues organize the body of plant for performing different function. Many types of tissues associate with each other…