In the diagram given below, show the path of a pollen tube from the pollen on the stigma into the embryo sac. Name the components of egg apparatus.
In the diagram given below, show the path of a pollen tube from the pollen on the stigma into the embryo sac. Name the components of egg apparatus.
After properly suitable pollination, pollen grain germinates on anther and out of all germpores, pollen tube is produced in one of the germpore. The fluid of pollen grain along with two nuclei located in pollen grain reaches to pollen tube. Pollen tube grows by passing from the tissue of anther. When it enters into embryo sac by micropyle at that time pollen tube enters by filiform appraratus then a synergid cell decomposes.
Pollen tube breaks to release its material located in pollen tube. Two male gametes are released. Among them one does syngamy with egg cell and other male gemete perform syngamy with central cell thus is gets fertilised.
Two synergid cells, an egg cell and filiform apparatus are present as parts of egg apparatus located in embryo sac.
Similar Questions
Name the part of gynoecium that determines the compatible nature of pollen grain.
Name the part of gynoecium that determines the compatible nature of pollen grain.
Identify $X$ and $Y$ from figure.
Identify $X$ and $Y$ from figure.
$A$ : Initial growth of pollen tube takes place on expenditure of food present in the stigma and style.
$R$ : Pollen tube travels intracellularly and chemotactically.
$A$ : Initial growth of pollen tube takes place on expenditure of food present in the stigma and style.
$R$ : Pollen tube travels intracellularly and chemotactically.
$60\; \%$ of the angiosperms shed their pollens at the
$60\; \%$ of the angiosperms shed their pollens at the
Growth of pollen tube towards embryo sac is
Growth of pollen tube towards embryo sac is
- [AIIMS 2000]