Sporophyte. Development of Sporogonium. 1. The oospore divides transversely to form upper (epibasal) and lower (hypobasal) cell. 2. The hypobasal region forms foot and lower part of seta. The foot region consists of thin-walled cells. It is embedded in the stalk of the archegonium. The cells of the seta are larger and poor in cytoplasmic. Sperm are produced in structures called antheridia (sing. antheridium), eggs are produced in archegonia (sing. archegonium),. As in protists and fungi, spores of plants are produced in sporangia (sing. sporangium). A dependent sporophyte is a sporophyte that is small and grows attached to the gametophyte. It obtains nutrients from the gametophyte.
Dec 29, · In mosses, the adult sporophyte depends on the gametophyte for its nutrition. now fuse again into one diploid cell, which is the called zygote. The spores begin to build some kind of mesh of cell. Accordingly, we treat it as an anatomical extension of the gametophyte. In the capsule now develop the spores, which only have one single set of. sporophyte and gametophyte. virginities.xyz are seedless, vascular plants. The adult sporophyte form of a fern is similar to an adult animal because they are both diploid. Diploid organisms have two copies of each chromosome. However, unlike an adult animal, the fern does not produce gametes, or sex.
The character and relative extent of the two phases vary greatly among different groups of plants and algae. During the course of evolution, the sporophyte stage has become progressively virginities.xyz, in the higher (i.e., vascular) plants the sporophyte is the dominant phase in the life cycle, whereas in the more primitive nonvascular plants the gametophyte remains virginities.xyzg: adult. An exception is when a diploid and haploid gamete fuse, resulting in a triploid sporophyte, which will usually be sterile, as dividing three sets of chromosomes into two halves causes complications. Bryophytes (mosses, liverworts and hornworts) have a dominant gametophyte stage on which the adult sporophyte is parasitic.