परजीवी पौधों में एक जड़ की तरह लगाव जो होस्ट से भोजन प्राप्त करता है और प्राप्त करता है

haustoria's Usage Examples:

In Physma, Arnoldia, Phylliscum and other genera the gonidia are killed sooner or later by special hyphal branches, haustoria, which pierce the membrane of the algal cell, penetrate the protoplasm and absorb the contents (fig.

The hyphae composing the mycelium are provided with haustoria which project into the cells of the affected part (fig.

haustoriumes -- (of fungi) intricately branched haustoria in cortex cells.

h, haustoria.

Endophytic parasites may be intracellular, when the fungus or its mycelium plunges into the cells and destroys their contents directly (Olpidium, Lagenidium, Sclerotinia, 'c.), but they are far more frequently intercellular, at any rate while young, the mycelium growing in the lacunae between the cells (Peronospora, Uredineae) into which it may send short (Cystopus), or long and branched (Peronospora Calotheca) haustoria, or it extends in the middle lamella (Ustilago), or even in the solid substance of the cell-wall (Botrytis).

Such obligate parasites may be epiphytic (Erysipheae), the mycelium remaining on the outside and at most merely sending haustoria into the epidermal cells, or endophytic (Uredineae, Ustilagineae, 'c.), when the mycelium is entirely inside the organs of the host.

Appressoria are also formed by some parasitic fungi, as a minute flattening of the tip of a very short branch (Erysiphe), or the swollen end of any hypha which comes in contact with the surface of the host (Piptocephalis, Syncephalis), haustoria piercing in each case the cell-wall below.

Mycelium with haustoria (h); 2, Erysiphe; A and B, mycelium (m), with haustoria (h).

A and B, mycelium (m), the mix t ure over the affe c ted with haustoria (h).

They form a superficial mycelium on the surface of the plant, the hyphae not usually penetrating the tissues but merely sending haustoria into the epidermal cells.

haustoria's Meaning':

a root-like attachment in parasitic plants that penetrates and obtains food from the host