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Ovule

ovule

A structure in seed plants which contains the megasporangium (nucellus), megaspore (embryo sac), a food store, and a coat, and develops into a seed after fertilization.


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Structure of flower

... The stalk of a carpel, between the stigma and the ovary, through which the pollen tube grows. Ovary Enlarged base of the carpel containing the ovule or ovules. The ovary matures to become a fruit. Ovule Located in the ovaries. Carries female gametes. Ovules become seeds on fertilization.

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by snowfall
Thu May 30, 2013 5:29 pm
 
Forum: Botany Discussion
Topic: Structure of flower
Replies: 3
Views: 3966

How does seeds formed after pollination?

I guess fertilization can occur many times within one plant. Some flowers might have several ovules. Each ovule contains one ovum. When pollen grains land on the stigma, more than one pollen tubes can be formed and each carries a male gamete to one ovule.

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by AndyYip
Sat Sep 29, 2012 4:20 pm
 
Forum: Botany Discussion
Topic: How does seeds formed after pollination?
Replies: 1
Views: 3653

How does seeds formed after pollination?

In a flower ovary consists of ovules.Ovule has an egg cell.When pollination occur among several pollen grains only one pollengrain enter the ovule and fertilize the egg. After pollination ovary is converted to fruit and ovules are converted ...

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by kumar985
Fri Jul 20, 2012 4:09 pm
 
Forum: Botany Discussion
Topic: How does seeds formed after pollination?
Replies: 1
Views: 3653

Why coniferophyta called sporophyte?

... grain, and megaspores, which develop into the egg, antipodal cells, polar nuclei, and synergids. The seed is simply a structure, derived from the ovule, specific to vascular seed plants that houses the multicellular embryos of sporophytes.

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by aptitude
Mon Oct 10, 2011 4:55 am
 
Forum: Botany Discussion
Topic: Why coniferophyta called sporophyte?
Replies: 1
Views: 2616

Re: Can someone please explain to me about megaspores?

... the mother cell that give 4 daughter mega[female]gamete on meiotic division.among them only one is funtional.this funtional megaspore is called ovule.now this ovule take part in fertilization and ultimately give rise to zygote and the tradion continues.......

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by Dharmendra
Tue Sep 22, 2009 4:05 pm
 
Forum: Botany Discussion
Topic: Can someone please explain to me about megaspores?
Replies: 4
Views: 3350
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