Life Cycle of a Seed Plant
Annotated Bibliography
Dante, R., Larkins, B., & Sabelli, P. (2014). Cell cycle control and seed development. Frontiers in Plant Science, 5.
Dante et al. mention that seed development is complex and needs a coordination of the processes including metabolic, genetic, environmental cues and physiological pathways. According to the article, different cell cycle types often occur in sequential and in overlapping manner when the endosperm and embryo are developing. Dante et al. further remark that seed structure is a product of double fertilization. Polarized cells are generated in asymmetric cell divisions in the embryo. The cell and nuclear decision have a necessary function in the determination of the final cell numbers.
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examine the correlation between the “size and fitness of the Sonoran Desert winter annual (Dithyrea californica)”. Dormant and germinated seeds were compared for four years and the study also measured the impact of the size of the seed on the success to reproduce and survive. Hence, the research related survival and fecundity along with the original seed size. Under stressing conditions, the size of the seed has significant impacts on the formation, survival and the reproductive success. According to the article, the process is essential for the fitness of the plant. In their findings, Larios et al. reported that large seeds have a high probability of germinating compared to small seeds. In the study, a plant which originated from large seeds denoted to have a high rate of surviving than those from smaller seeds. More importantly, the researchers postulated that the precipitation amount was valuable on the plant fecundity and was critical in influencing the seed-size survival selection. Competition among plants reduces plant fecundity and survival and hence creates a damaging setting for plants to grow and produce. The article is relevant and important as it showed empirical evidence of the seed size selection in the entire life cycle of the seed. The researchers concluded that the maternal provisioning has benefits that continue to showcase in adulthood and that the interactions with the environment determine survival and …show more content…
(2014). Cell cycle control and seed development. Frontiers in Plant Science, 5.
Eskandari, H. (2012). Seed quality changes in cowpea (Vigna sinensis) during seed development and maturation. Seed Science and Technology, 40(1), 108-112.
Larios, E., Búrquez, A., Becerra, J., & Lawrence Venable, D. (2014). Natural selection on seed size through the life cycle of a desert annual plant. Ecology, 95(11), 3213-3220.
Liu, Y., & El-Kassaby, Y. (2014). Timing of seed germination correlated with temperature-based environmental conditions during seed development in conifers. Seed Science Research, 25(01), 29-45.
Moles, A., & Westoby, M. (2006). Seed size and plant strategy across the whole life cycle. Oikos, 113(1), 91-105.
Qin, G., Wang, Q., Hu, J., Li, Z., He, F., & Wang, J. (2013). Changes in seed quality and ABA content during seed development in sponge gourd (Luffa cylindrica). Seed Science and Technology, 41(3),
Something I learned about in Herbology 301 is healing. Healing is an important part of our life, which is why i wanted to write about it. Healing spells are needed in everyday life, and if we were to ask someone how many healing spells they 've used in their lifetime, the number would probably be too high to remember. I also learned that mental illnesses are not one-spell-cure-all diseases, which is very helpful to know.
Human error played a factor because it was not made sure that air was trapped in each bag. In the class data the amount of seeds germinated on day three was higher than the amount of seeds germinated on day four. This is not possible as the amount of seeds germinated cannot decrease, rather they should stay the same or increase. A seed cannot go from being germinated to not being germinated. This could have occurred from miscounting or not accurately counting the number of seeds germinated.
The maternal bond is considered the strongest bond two humans can have. Since birth, a child is enamoured with his mother, the gentle soul who brought him into the world. Nothing compares to a mother’s unconditional love, as she forms an inseparable and essential bond with her little angel. Of course, not every child is as fortunate. If the parent that brings an innocent child into the world neglects their duties, the child faces adversities.
There are many symbols in A Raisin in the Sun worth describing, but one that particularly stands out is Mama’s plant. It is old and barely a substantial piece of nature, yet it makes many vital appearances in the play. The small plant seems to personify Mama’s stubborn nature in its intent on survival despite its close to death appearance. It also represents Mama’s dream that seems close to being crushed, yet never dies. As a whole, the plant is an extension of Mama’s character and an important symbol in the play.
We chose to attempt directional selection in order to breed more tall plants and less of the short plants Materials and Methods: The independent variable is the passage of time upon which the plant height depends. The P generation is the control in this case; they are the original sample, and their progeny is acted upon. We performed this experiment by first growing a random group of Wisconsin Fast Plants. We emasculated the shorter plants in order to prevent self-pollination, and bred the taller plants with all the other plants.
Introduction: This lab report outlines an experiment on the observation of mitosis in the cells of garlic root tips. Mitosis simply put is the division of a nucleus producing two daughter cells with the same number of chromosomes as the parent cell. Miotic cell division consists of five stages: Interphase, Prophase, Metaphase, Anaphase and Telophase. The purpose of this experimet was to identify and observe cells within each stage of mitosis using garlic root tip cells.
Seed Dispersal Lab Sam O’Quinn Per. 5 Introduction- Whenever plants grow reproduce, they have to have a method to disperse their seeds. They can do this in one of three ways: through wind, animals, or by water.
Parents may be hesitant to leave their child in a low-quality, risky environment or with grown-ups who don't give an animating or warm environment for their child. This may be a specific issue for lower-income families, who have more restricted options of suppliers. Interestingly, a great care environment may support livelihood and more hours of work bringing about higher efficiency. Parents will probably be on time to work and less inclined to miss time from work in the event that they know their children are in great hands. Among low-income ladies, higher-quality child care may build livelihood, steadiness of job, and hours of work (Campbell et al.,
Since mothers are individuals who spend the most time with their children, they are the main contributors to a child’s early development. Children raised by literate mothers will learn language faster than those raised by illiterate mothers. Mothers with a higher level of education are more capable in helping out with their children’s schoolwork and can better plan their children’s academic path as they have a better understanding of the education system. Other studies have also shown that the level of maternal education has a major impact on child health (Brown, 2010). Educated mothers will take early preventive measures during a disease outbreak as they know the importance of sanitation and vaccination.
The arrival of a new baby, especially the first always marks a new beginning for a mother. It comes with a lot of challenges more so if the mother is less knowledgeable about baby care. Take such as cleaning the baby for the first time, or feeding, it is not easy. The baby is still fragile and slippery and needs a special care. But if the mother is not ready for all these, or maybe, does not have any knowledge on what to do, the baby’s life might be endangered since the baby needs a special care which only the mother can give.
Angiosperms are further divided into two sub-classes, Monocotyledons and Dicotyledons dependng on the number of cotyledons ( seed leaves ) are in the embryo. Monocots ( grasses and orchids ) have one cotyledon and Dicots have two
Plants are essential elements of the earth ecosystem. Despite the importance of plants to support the life on our world, our understanding of their developmental processes is still fragmentary. In nature, plants grow next to each other forming the different societies of the plant kingdom. Nature, in turn, affects the growth of these plants by applying different environmental factors that could limit the agricultural productivity. Duration, severity and rate of imposed stress are the factors underlying the plant response to stress (Munné-Bosch and Alegre, 2004; Omezzine et al., 2014).
The diverse nature of women’s roles makes generalization impossible. However, the study clearly indicates an impact on the women and the child’s nutritional status owing to the woman’s time
The lack of a mother’s love and attention can cause various deep-rooted impacts later on in life. Any child, infant or toddler or otherwise, whose mother has to leave them behind for a long period will be impacted in a negative way because there is no alternative to the kind of care mothers