What is the meaning of Sporogenesis in biology?
What is the meaning of Sporogenesis in biology?
spore formation
sporogenesis. / (ˌspɔːrəʊˈdʒɛnɪsɪs, ˌspɒ-) / noun. the process of spore formation in plants and animals.
What is Sporogenesis germination?
Sporogenesis – lack of water, lack of food, too much UV light, mutagen. Germination – the presence of water and a specific germination agent. The agent stimulates the formation of hydrolytic enzymes.
What are the steps of Sporogenesis?
Sporogenesis in M. chalcea occurs in two stages, sporulation septum formation and spore maturation. The process is initiated by the swelling of the apical end of a hypha before its delimitation by the sporulation septum.
What is the meaning of Sporogenesis * 1 point?
1 : reproduction by spores.
What is an example of sporogenesis?
Mitotic sporogenesis is a form of asexual reproduction. Examples are the conidial fungi Aspergillus and Penicillium, for which mitospore formation appears to be the primary mode of reproduction. Other fungi, such as ascomycetes, utilize both mitotic and meiotic spores.
What is sporogenesis tissue?
The anthers are comprised of tissues that contain spore-producing cells called microsporocytes or sporogenous tissue. These pollen mother cells undergo meiosis to develop into pollen grains.
What is the primary purpose of Sporogenesis germination?
Sporogenesis/germination are mechanisms that ensure cell survival under all environmental conditions (they are not means of reproduction). Heat must be added during primary stain because the impervious coat of spores will not accept the stain easily.
What is Sporogenesis tissue?
What is sporulation example?
They are thick-walled spores produced directly from hyphal cells. They may be terminal or intercalary. They store reserve food material and are capable of withstanding long unfavourable conditions. For example, Rhizopus, Agaricus (mushroom), etc.
Where does Sporogenesis occur?
sporangia
Sporogenesis occurs in reproductive structures termed sporangia. The process involves sporogenous cells (sporocytes, also called spore mother cells) undergoing cell division to give rise to spores.
Are spores zygotes?
In plants, spores are usually haploid and unicellular and are produced by meiosis in the sporangium of a diploid sporophyte. Two gametes fuse to form a zygote which develops into a new sporophyte.
Where Sporogenous tissue is found?
anther
Sporogenous tissue is located at the centre of each microsporangium in a young anther. With the development of the anther, the sporogenous cells undergo meiotic division to form microspore tetrads. Each sporogenous cell is known as the pollen mother cell.
Which is the best dictionary definition of sporogenesis?
Define sporogenesis. sporogenesis synonyms, sporogenesis pronunciation, sporogenesis translation, English dictionary definition of sporogenesis. n. 1. Production or formation of spores. 2. Reproduction by means of spores. spo′ro·gen′ic , spo·rog′e·nous adj. American Heritage® Dictionary of the…
How are megaspores formed in a sporogenesis cell?
Sporogenesis. In the megasporangia, or ovules, of some angiosperms, meiosis results in formation of cells having two or four haploid nuclei, which correspond to two or four megaspores. Female gametophytes, in the form of bisporous and tetrasporous embryo sacs, develop from these cells.
Where does sporogenesis take place in a mosquito?
There is sporogenesis (a sexual development phase) inside the mosquito’s digestive system.
Which is the result of the formation of spores?
[ spôr′ə-jĕn ′ĭ-sĭs ] The formation or production of spores. Sporogenesis may result from mitosis or meiosis. Plant spores result from meiosis, whereas fungal spores may result from either mitosis or meiosis depending on the species.