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Pollen grains reach the pistil through pollination. The pollen grains are placed on the stigma of the carpal, and it transfers by wind, insects, built in mechanical discharge, and men. When the pollen lands on the stigma, it starts a series of chemical reactions that allow the pollen grain to produce a structure called the pollen tube. At the same time, the generative nucleus divides and produces two sperm nuclei. The pollen grain with the pollen tube and three nuclei is a mature gametophyte. The pollen tube works its way through the style of the carpal and touches the micropyte of the ovule. The sperm nuclei enter the embryo sac and fertilizes the egg and two polar nuclei, referred to as double fertilization. The fertilized egg develops into the immature seed plant, and the central cell develops into the endosperm, or food storage ares, of the seed.
Wiki User
∙ 9y ago
Wiki User
∙ 11y agoBy brusting the nearby anther lobes in self pollination and by pollinators in cross pollination. There are different pollinators for different plants and most common are honey bees. Butterflies, moths, birds, bats, water and wind are the other catagories of pollinators.
Wiki User
∙ 9y agoThe pollen grain reach the pistil either by self-pollination or by cross pollination by pollinators.
Wiki User
∙ 11y agothrough pollination
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Which flower part is sticky or feathery so it can capture pollen?
stamen is the broad term; the individual parts are called anthers. actually i think he means the stigmata
What are the six main parts of a flower?
Pedicel Receptacle Sepal Petal Stamen Carpel/Pistil Pedicel Receptacle Sepal Petal Stamen Carpel/Pistil Pedicel Receptacle Sepal Petal Stamen Carpel/Pistil
Ways pollen can move?
There are three common kinds of pollination: self pollination, wind pollination, and insect pollination. •Self pollination is when the pollen in the stamen (male part of the plant) drops into an ovule (egg) in the ovary of the stigma (female part) of the same plant. This is why it is called self pollination. • Wind pollination occurs in plants that are all-male (its flowers only containing stamen) and all-female (its flowers only containing the stigma). The stamen develops millions of pollen grains in the spring, as the chance of the pollen reaching an all-female plant is very little, and releases it in the summer. The few pollen grains that reach an all-female plant will be likely to reach an ovule in the stigma and pollinate the ovule. • Insect pollination is used by a lot of plants. This method of reproduction is when an insect such as a bee, butterfly, moth, or sometimes a bat, reaches a flower and sucks out the nectar in the flower. As they do this, the pollen gets stuck in their legs, and when they suck the nectar from the flower of another plant, the pollen gets onto the flower and into the stigma. If the pollen from a different type of plant is put into a stigma of a plant, pollination won't occur, so God has designed the bees of each hive to suck nectar from one kind of flower each day, so that the chance of pollination will be more.
What is the fertilizing powder produced by plants called?
I think you want pollen as the answer.
What is the role of the stamens?
The stamen is referred to as the "male" part of a flower because it produces pollen. Once pollen is deposited on the pistil (the "female" part) seeds are produced. Pollen is often carried on the legs of honey bees and as the bees flit from flower to flower collecting nectar, the pollen is deposited on the pistils. The plant makes seeds, the seeds are scattered about the ground (often in bird poop) The seeds germinate, that is, they grow into new plants. The more I study the evolution of life on our planet, the more amazing it all seems.
How do think pollen grains reach the pistil?
Either randomly on the wind, or when a flying insect covered in pollen brushes against the pistil as it flies from flower to flower.
How do you think pollen grain reach pistil?
The pollen grain reach the pistil either by self-pollination or by cross pollination by pollinators.
How do you think pollen grain reach the pistil on gumamela flower?
ambot nimo
Are pollen grains wet?
i think not
What is the top of the pistil that catches the pollen grain?
I think it's Stigma -.-t
How do you think pollen grain rich the pistil?
the pistil is helpful to plants it gives of hyfro chemicals whic is needed to undergo stimulation
What is needed to fertilize the carpel?
I think that the pollen grains is neede to fertilize the carpel.......
What happens from the time pollen lands on the female part of the flower until the seed forms?
-pollen sticks to the stigma at the end of the pistil -pollen tubes grow down the pistil to the egg cells -sperm cells from the pollen moves down the tubes -fertilization combines DNA
Sticky secretion on the scales of seed cones traps?
A sticky secretion on the scales of seed cones traps pollen grains. Structure is produced by a pollen grain that lands near an ovule is pollen tubes.
Why does pollen have spikes?
The reason why some pollen grains have spikes is because of the plant species. It also may be because of where the plant was adapted. Pollen grains have spikes also simply due to the location where the species is found. It is located in the coastal species where pollen grains have a different pollen shape to help with things such as salt resistant while a species found inland will be more heat resistant. It really just depends on the type of environment in which the plant has adapted. By Lyn Le
How could a heavy rainfall on a fruit orchard in the spring result in a poor fruit yield in the fall?
I think that heavy rain on a fruit orchard in the spring would cause a poor fruit yield because all the pollen would be washed away, and therefore, the eggs would not be fertilized. The ovary, in which the ovules are contained, become the fruit once all the ovules are fertilized. The pollen is produced in the anther, and then they are transported to the pistil by different insects. The pistil contains the stigma, which is a sticky receptive surface where the pollen fall. The stigma also contains the style, which is the pollen tube through which the pollen reach the eggs. Now, if there is heavy rainfall, the pollen may not stick to the stigma, and then be washed away, or the insects may not come and transport the pollen to the stigma, which means that the ovary would never become a fruit.
How stigma helps in the wind pollination?
Depending on the type of pollinators, the pollen grains may be sticky or light. Exine present on the pollen grains as the outermost covering layer is contributed by the tapetum cells. Reaching on the stigma after pollination, the stigmatic cells interact with the material of exine to determine the compatibility of the pollen to allow its germination for fertilization.
