Phylum Rhodophyta Reproduction Flashcards
Phylum Rhodophyta
Sexual Reproduction (13 Steps)
1.) Reproductive structure generation:
Haploid male gametophytes make spermatogonia or,
Haploid female gametophytes make carpogonia -> ..
2.) Gamete production
Spermatogonia make spermatia
Caprogonia make eggs + trichogyne
Phylum Rhodophyta
Sexual Reproduction (13 Steps)
2.) Gamete production
(spermatia / eggs+trichogyne) ->
3.) Spermatia attach to trichogyne
Phylum Rhodophyta
Sexual Reproduction (13 Steps)
3.) Spermatia attach to trichogyne ->
4.) Cell walls break down, and egg/spermatia fuse (fertilization)
Phylum Rhodophyta
Sexual Reproduction (13 Steps)
4.) Cell walls break down and egg/spermatia fuse ->
5.) Diploid zygote creates a cystocarp
Phylum Rhodophyta
Sexual Reproduction (13 Steps)
5.) Diploid zygote creates a cystocarp
6.) Cystocarp creates carposporangia
Phylum Rhodophyta
Sexual Reproduction (13 Steps)
6.) Cystocarp creates carposporangia ->
7.) Carposporangia create carpospores
Phylum Rhodophyta
Sexual Reproduction (13 Steps)
7.) Carposporangia create carpospores ->
8.) Carpospores exit and settle
Phylum Rhodophyta
Sexual Reproduction (13 Steps)
8.) Carpospore exit and settle ->
9.) Each carpospore does mitosis to create an adult sporophyte thallus
Phylum Rhodophyta
Sexual Reproduction (13 Steps)
9.) Each carpospore does mitosis to create an adult sporophyte thallus ->
10.) Sporophyte create tetrasporangia
Phylum Rhodophyta
Sexual Reproduction (13 Steps)
10.) Sporophyte create tetrasporangia ->
11.) Tetrasporangia creates 4 tetraspores via meiosis
Phylum Rhodophyta
Sexual Reproduction (13 Steps)
11.) Tetrasporangia creates 4 tetraspores via meiosis ->
12.) Tetraspores exit and settle
Phylum Rhodophyta
Sexual Reproduction (13 Steps)
12.) Tetraspores exit and settle
13.) Each tetraspore does mitosis to become male or female adult gametophyte thallus
