The first generation of mosses starts with germination of spores to develop into gametophyte. The male and female gametophytes produce anthridia and archegonia. Motile antherozoids are released from anthridia and make their way to archegonia through water. The egg inside archegonium is fertilized to form the zygote. The zygote develops into a sporophyte, which remain dependent on the gametophyte.
Yes, according to the botany of the World, mosses of the plant group evolved first. You can get that book from any public library.
The dominant generation in mosses is the gametophyte generation. This is the photosynthetic, leafy structure that produces gametes for sexual reproduction. The sporophyte generation in mosses is much smaller and dependent on the gametophyte for nutrients.
Mosses have simple genetic structure and shorter generation times, allowing for quicker observation of genetic effects of radiation compared to plants with more complex genetic structures and longer generation times. Additionally, mosses have a higher sensitivity to radiation, making the effects more readily observable.
Sporangium
Unlike true mosses, club mosses have vascular tissue.
Club mosses are vascular plants that have specialized tissues for transporting water and nutrients, while true mosses lack these tissues and rely on diffusion for nutrient uptake. Club mosses also produce cones for reproduction, while true mosses reproduce through spores produced in capsules. Additionally, club mosses typically have a vertical stem structure, while true mosses have a prostrate growth form.
The dominant generation in mosses is the gametophyte generation. This is the photosynthetic, leafy structure that produces gametes for sexual reproduction. The sporophyte generation in mosses is much smaller and dependent on the gametophyte for nutrients.
gametophyte generation
Second generation produced in mosses is sporophyte on the gametophytic plant body.
Gametophyte
In mosses, the photosynthetic cell possesses a spore capsule. A good example is the polytrichum which has a capsule with a sterile jacket.
The sporophyte generation is dominant in ferns.
The gametophyte generation is more prominent and independent in mosses and ferns compared to seed plants. Also, the sporophyte generation in mosses and ferns is not as prominent or long-lived as in seed plants. Finally, mosses and ferns rely on water for fertilization, a characteristic not seen in seed plants.
Mosses are non-vascular plants whereas ferns are vascular. In ferns Sporophyte is dominant but in mosses gametophyte is dominant generation. Ferns have definite roots but in mosses leaves and roots are mostly false.
a tracheophyte is a vascular plant which is capable of conducting water, minerals and photosynthetic products through the plant. This includes conifers, gymnosperms, angiosperms, club mosses and ferns.
Mosses have simple genetic structure and shorter generation times, allowing for quicker observation of genetic effects of radiation compared to plants with more complex genetic structures and longer generation times. Additionally, mosses have a higher sensitivity to radiation, making the effects more readily observable.
Sporangium
The gametophyte generation is the most conspicuous in the Phylum Bryophyta. Gametophytes are the dominant and noticeable stage in the life cycle of mosses, liverworts, and hornworts, while the sporophyte generation is typically smaller and less noticeable.