The seed is an undeveloped plant embryo enclosed in a protective outer covering. This outer cover is called the endosperm. It is the food reserve of the plant.
Genetic control of growth and development
Genetic control of growth and development has been studied in the microscopic realm. But the smallest of microbes isn’t the only species that requires a keen understanding of the rudiments. In fact, many model organisms, such as the fruit fly, require specific attention to the small stuff. The endocrine system, for example, regulates a wide range of metabolic processes.
There are a myriad of genes that regulate growth and development. Some of the more intriguing are the transcription factor members. Having a good handle on the finer points of gene activation is essential to maintaining the health of our planet.
To make matters worse, the science of gene activation is not as well understood as it should be. For instance, how do you tell whether a cell mutates or not? Similarly, what are the ramifications of a single cell transforming into a population of cells?
Endosperm surrounds the embryo
Endosperm is the protective, nutritive tissue that surrounds the developing embryo in seeds. It contains proteins, vitamins and minerals and it helps nourish the embryo. The endosperm plays a central role in seed germination.
Endosperm development takes place in three main stages: syncytial phase, terminal differentiation and cellularization. Each of these stages is associated with an endosperm type. While the function of endosperm is not completely understood, it has been demonstrated that it serves as a barrier during the germination process and it provides a source of nutrition for the embryo.
During the syncytial phase, the zygote divides into nuclei. These nuclei then migrate in symmetrical fashion to define specific developmental fields. Once cytokinesis is complete, the syncytium enters the terminal differentiation stage.
Adaptations for dispersal
Seed dispersal is an important part of the life cycle of many plants. It allows them to colonize new locations and increase the size of their populations. Plants can do this through a variety of means, including vegetative outgrowths, vegetative reproduction, vegetative propagation, seed dispersal, and animal dispersal. Some species have specialized adaptations that enable them to spread seeds. These adaptations can be useful for pollination, germination, and the dispersal of seeds.
Dispersal strategies depend on the nature of the environment in which the species grows. In some environments, plants may be restricted from expanding their range due to the presence of predators or other obstacles. If the habitat is unsuitable, the plant must find an alternative to avoid extinction.
Oils and stimulants from seeds
Seed oil is a type of fat derived from the seeds of crops. It contains a range of polyunsaturated fats, including omega-6 fatty acids. Increasing vegetable oil consumption correlates with a rise in heart disease, diabetes, and obesity.
In the U.S., seed oils are not regulated. The Pure Food and Drug Act focuses on misbranded foods. However, they are still used in cooking and candy.
Seed oils are refined using industrial methods. They usually contain damaged fats. Damaged fats occur from the processing of the seeds, storage, and heating.
Because of this, the safety of seed oils has been questioned. Researchers have found several toxic effects of seed oil. Some seed oils are beneficial. Other seed oils have been shown to reduce cholesterol.
Edible seeds
Edible seeds are a healthy addition to your diet, providing a number of benefits, ranging from fiber to antioxidants. They are also a great way to add variety to your meal.
Several types of plant seeds are edible, from walnuts to sunflower seeds. Some of these have a lot of health benefits, especially when consumed raw or cooked. In fact, they are an excellent source of omega 3 fatty acids, which are necessary for maintaining heart and immune system health.
As a result, seeds have become increasingly popular for use in numerous food items. From muffins to dosa batter to chapathi dough, there are a variety of ways you can add them to your cooking.
Weed species that are harmful in one of the following ways
Weeds may be a pest in your home, yard or pasture, but they are an important component of your food supply. For one thing, they feed you and produce fibre. The most noxious weeds can outcompete your best crops. So what are the best weed control measures to consider? Some examples include a combination of physical and chemical methods, preferably in a rotational fashion, along with regular monitoring of weed growth and the use of weed control pheromones. Managing a weed population will ensure the survival of your best crops for many years to come. Taking the time to identify and eliminate the most problematic weeds can save you from expensive chemical applications or even a trip to the pound shop.
