C. malina has grayish-black mycelium. However, no conidia have been observed in this fungus. Researchers have not observed either asexually reproductive or sexually reproductive structures both in the field and in laboratory conditions. The attempt to induce production of reproductive structures by Tomaso-Peterson et al.in 2016 was not successful (Tomaso-Peterson et al. 2016). Other species in the Curvularia genus do produce reproductive structures. Production of conidia and spores has been observed in Curvularia inaquaelis (Kim et al. 2000). Despite the lack of observable reproductive structures, C. malina has dark brown/black colored vegetative structures that are similar in structure and morphology to other species of Curvularia
Sordaria fimicola belongs to the kingdom of fungi and is part of the phylum Ascosmycota. This fungus habitat is in the feces of herbivores. As many fungi Sordaria have one life cycles which is haploid/ diploid. It is commonly exits as a haploid organism, but when the mycelium from two individuals meets, the result is a diploid zygote. This diploid zygote which undergoes meiosis forms eight haploid ascospores . The ability of Sordaria to make 8 haploid ascospores is what makes it unique and important for the laboratory exercise done in lab.
Sordaria fimicola is a species of microscopic fungus that is an Ascomycete and are used to test for genetic variation in the lab setting (Sordaria fimicola: A Fungus used in Genetics, Volk). These organisms are what are called model organisms, or species that has been widely studied usually because it is easy to maintain and breed in a laboratory setting and has particular experimental advantages (Sordaria fimicola, Volk). S. fimicola, because it is in the Ascomycota phylum, have a distinguishing reproductive structure called the ascus, which is surrounded by the perithecium. This cylindrical sac-like structure houses 8 haploid spores; created through meiosis to produce 4 haploid spores and then mitosis to make 8 (Lab Manual, pg. 59-68). Based on the genotype they will vary in order and color. There are 3 different ratios that can arise from the 8 ascospores: 4:4, 2:2:2:2, and 2:4:2 (black/wild type and tan coloration). The 4:4 ratio suggests that no crossing over had occurred because there is no difference in order of the color parents that were mated. The two other ratios suggest genetic recombination, or crossing over, because of the
The hypothesis for this experiment was that the cell fraction in the cuvette marked P2 will have more chloroplast activity because it will exhibit greater color change and differences in the absorbance readings compared to the other cuvettes when exposed under the condition of light; moreover, this notion was believed to be so because the more a cell fraction is centrifuged, the more intact chloroplasts we’ll find (Leicht and McAllister,
In wild type culture of C-ferns, it is expected that there will be a high concentration of antheridiogen since the hermaphrodites are producing antheridiogen. The greater the population density of C-ferns, the higher the concentration of antheridiogen; hence a high percentage of male gametophytes in the wild type cultures.
The Female Reproductive System parts are gametes, which is a mature haploid male or female germ cell that is able to unite with another of the opposite sex in several reproductions to form a zygote. Egg is a person possessing a specified quantity. Ovum is a mature female reproductive cell especially of a human or other animal that van divide to give rise to an embryo usually only after fertilization by a male cell. Vaginal is a muscular tube leading from the external genitals to the cervix of the uterus in women and most female mammals. Labia is the inner and outer folds of the vulva, at either side of the vagina. Clitoris is a small sensitive and erectile part of the female genitals at the anterior end of the vulva. Urethra is a duct by which urine is convey out of the body from the bladder and which in male vertebrates also conveys semen. Hymen is a membrane that partially closes the opening of the vagina and whose presence is traditionally taken to be a mark of virginity. Uterus is the organ in the lower body of a women or female mammal where offspring are conceived and in which they gestate before birth; the womb. Cervix is a narrow like passage forming the lower end of the uterus. Fallopian tube is either of a pert of tubes along which eggs travel from the ovaries to the uterus. Ovary is a female reproductive organ in which ova or eggs are produces, present in humans and other vertebrates as a pair. Estrogen is a group of steroid hormones that promote the development and maintained of female characteristics of the body. Progesterone is a steroid hormone released by the corpus lutetium that stimulates the uterus to prepare for pregnancy. The Male Reproductive System parts are testes, which is an organ that produces spermatozo...
Then the next slide was placed containing the eukaryotic microorganism yeast known as Candida. The same procedure of viewing was repeated with the microorganism starting at 4X again. When viewed it contained buds and seemed to be in little sections connected together. The little buds appeared to be in the colors of purplish red. In continuation, the microorganism Fungi known as Asperigillus was viewed next under the microscope. It seemed to have spores which are used by the eukaryotic microorganism for reproduction and long filaments of hyphae. The hyphae were purplish in color and the spores seemed dark purplish or black in color. It was quite fascinating to the
The University of Western Cape. 2009. Sclerenchyma. Available from: http://www.botany.uwc.ac.za/SCI_ED/grade10/plant_tissues/sclerenchyma.htm Accessed on 24th February 2009
middle of paper ... ... World Book Inc, 2000. Davis, Lloyd S. and John T Darby. Penguin Biology. San Diego: Academic Press, Inc., 1990.
Soft corals are very widespread among the Great Barrier Reef and other Indo-Pacific coral reefs. On the Great Barrier Reef they may cover up to 37% of the reef area (Bastidas, et. al, 2001). Even though soft corals are abundant on the Great Barrier Reef they have been overshadowed by the study of hard corals. Very little research has been conducted on them, yet they are just as fascinating as their hard coral neighbors. The main purpose of this paper is to explain why evolution has made it possible for soft corals to reproduce both sexually and asexually. To do this I will first introduce soft corals, then explain the types of reproduction soft corals are capable of, and finally explain why evolution has made it possible for soft corals to reproduce both sexually and asexually, using numerous studies to support my claims. Most of the information on this topic was very species specific, but this paper will explain the reproductive evolution of soft corals in a broader array that will pertain to the scientific order Alcyonacea, or all types of soft corals.
The Reproductive System The male and female reproductive systems are different with both having specific roles. The Male Reproductive System = == ==
The reproductive system was mainly located towards the anal area and inferior to the stomach. The penis was located in the middle. It was white in color and looked like a mealworm. The seminal vesicles were located on both sides of the penis. They were grayish pink in color and looked like walnuts.
Asphodelaceae is a distinct family from other liliod monocot groups by a combination of several morphological and reproductive features: simultaneous microsporogensis, atypical ovular structure, lacking steroidal saponins, producing seeds with arils, and the general presence of anthraquinones. Basic morphological features of genera within the Asphodelaceae consist of mostly herbs, shrubs, and sometimes arborescent, which grows into woody forms with trunks that can grow up to several meters high. The leaves are arrangement is alternate, spiral or 2-ranked that usually form rosettes at base or ends of the branches. The leaves are often thick and succulent with parallel venation. The succulent aloes vary in size and morphology from the dwarf rosettes (Adams et al. 2000). Vascular bundles are arranged in rings around mucilaginous parenchyma tissue, the bundles have parenchymatous aloin cells in inner bundle sheath near the phloem poles. The association of aloin cells and central gelatinous zones are synapomorphic for species with Alooideae (Judd et al. 1999). The perianth is usually bisexual and showy, with 6 distinct to strongly connate, non-spotted tepals. Reproductive flower parts have 6 distinct stamens and 3 connate carpels and a superior ovary that contain nectaries in septa.
Reproduction is one of the important physiological systems that are important in the life cycle of living organisms including fish. The main objective of the reproduction is to maintain the existence of the species and therefore fish has a strategies and tactics to achieve this objective. The reproduction behaviours are important to be studied in relation to know the population dynamic of fishes and their spawning seasons. This information is very crucial in relation to the development of breeding technology for aquaculture and conservation (restocking) purposes. This paper reviews the reproductive strategy, fecundity and spawning frequency of fishes.
The male reproductive system is a set of organs that works together to produce sperm which will later in life fertilize females eggs. The testes are the most important part of the system because it produces sperm cells. It is similar and looks similar to ovaries of a female’s reproductive system because it also holds what they need to reproduce. Its job is to produce the sperm cells needed to reproduce. Due to hormonal imbalances the production of sperm cells may not even be possible in some males. Testosterone is the male the hormone that gives men there manly characteristics. It is made up of hydrogen, carbon, and oxygen with a white color. In the male body it helps develop sex organs, a deeper voice, and facial hair (Khalid, 2013). Cancer or a genetic disorder in males is the most common thing that cause the reductions of testosterone production in the body. Behind the testes is the epididymis which lets sperm go through the vas deferens from the testes (Dictionary, 2014). It looks like leach the way it is position right on the testes but it is thinner. When sperm is produces the ...
The reproductive systems are based off of the goal to create offspring. Both the male and the female reproductive systems, although fueled by a similar goal, have different components and structures. Both systems are very complex in their own way, making it important for one to understand how each of the systems and their various processes work. Knowing the processes and components of the male and female reproductive systems will aid all people in their life, sometime or another. It’s important to understand how our individual bodies work and how life is produced.