Which cells in the life cycle of a mushroom can undergo meiosis?
my guess is the basidia....but are there more?
2007-03-16 08:45:28 · 2 answers · asked by calculusgirl1979 2 in Science & Mathematics ➔ Botany
Your guess is accurate. It is only in the basidium meiosis occurs.
After nuclear fusion ( Karyogamy) the nucleus in the basidium is diploid.
It undergoes MEIOSIS to produce four haploid nuclei.
From them four haploid basidiospres are produced.
See the pictures below.
In (1) which is a photograph under electron microscope , you will see an arrow pointing towards a basidiospore.
(2) & (3) In this you can see a basidium with sterigmata and basidiospores.
1) http://www.sputtercoater.com/Applications/Cryo_Apps_Library/mushroom.jpg
2) http://images.google.co.in/imgres?imgurl=http://www.apsnet.org/Education/IllustratedGlossary/PhotosA-D/basidium.jpg&imgrefurl=http://www.apsnet.org/Education/IllustratedGlossary/PhotosA-D/basidium.htm&h=274&w=425&sz=30&hl=en&start=2&tbnid=Q1QeA_Fa1Bd7GM:&tbnh=81&tbnw=126&prev=/images%3Fq%3Dmushroom%2Bbasidium%26gbv%3D2%26ndsp%3D20%26svnum%3D10%26hl%3Den%26sa%3DN
3) http://www.botany.hawaii.edu/faculty/wong/Bot201/Basidiomycota/Basidium_Development3b.jpg
2007-03-17 05:08:35 · answer #1 · answered by Anonymous · 0⤊ 0⤋
Sexual reproduction in basidiomycetes is similar to that of ascomycetes. Sexually compatible haploid hyphae fuse to produce a dikaryotic mycelium. This leads to the production of a basidiocarp. The most commonly-known basidiocarps are mushrooms, but they may also take many other forms. Club-like structures known as basidia generate haploid basidiospores following karyogamy and meiosis. These basidiospores then germinate to produce new haploid mycelia.
2007-03-16 16:13:24 · answer #2 · answered by MSK 4 · 1⤊ 0⤋