Although most plants have only two organ systems (shoot and root), the Venus flytrap has three. Its third system is its digestive system, which allows it to attract, kill and absorb its prey to absorb certain nutrients absent in the surrounding soil. Since the dirt in which it resides may be lacking certain minerals such as phosphorus or nitrogen, it must ingest small organisms to receive them.
Vascular plants are very successful because they can effectively use the resources around them. The reason vascular plants are so successful is because of their conductive tissues. Conductive tissues can transport food and water from one place in the plant to another. In a root cross section there are Dermal, Vascular and Ground tissues. Dermal tissue are located at the outermost layer. They prevent water loss and damage. The Vascular tissues are a type of conductive tissue so they transport resources. The Ground tissues perform photosynthesis and the storage of leftover food.
Plants are extremely important aspects of our lives. Without them we would not be able to breathe. However, many of us think that it is okay to abuse these plants and not take care of them. If we continue down he same path we are walking down right know, we will no longer have any trees or plants, therefore we will extinct. Let's all help the planet by recycling and causing less pollution.
This article talks about turning specialized plant cells back into pluripotent cells. It discusses ways such as external inputs including hormone injections and other things. It also talks about a certain demethylase that helps in the process.
While we as humans take in oxygen and release carbon dioxide, trees do the exact opposite and take in carbon dioxide and release oxygen. Trees are very vital in our communities because in the future, pollution levels are going to be much higher and since we are cutting more trees, there is going to be a decrease in oxygen in the air, making the air quality to drop. This is the reason why companies plant trees in certain places, so there can be trees in the future.
Scientists are researching plant stem cells. They were able to completely able to recreate an entire plant. They think that this may be able to help solve environmental issues
This journal highlights the breakthrough technologies and discoveries in plant biology; plant cells, organs and tissue. It details high-throughput analysis on gene expressed and function of plants.
Our nervous system transmits signals throughout our body, and helps us react to the environment. Plants, however, don’t possess a nervous system, but can still react to their surroundings. How do they do it?
Through tropisms – incredible biological phenomena that control plant movements and growth in response to an environmental stimulus, such as the sun.
This is apparent in plants like the sunflower, or the “touch-me-not”. Sunflowers constantly rotate to face the sun, and touch-me-nots’ leaves fold inward when shaken or touched.
This article talks about a new discovery in January this year.
Biologists have possibly found out a way to make photosynthesis more efficient to boost plant growth by simplifying photorespiration. This has been successful on tobacco by embedding genetic directions for a short cut. They are planning to do similar tests with soybeans, black-eyed peas, and rice.
This article talks about researchers who identified an part that controls the development of root branches. Separately, the professors focus on their own studies. One studies plants in changing environments and the other studies the development of roots. Together they used the model system known as root branching which makes sure that roots take advantage of nutrients and water to grow in the best way possible. They explored genes in plants during the early growing to help them in this discovery. This research could be used in the future to improve root architecture.
This article details a new discovery in our understanding of organ creation in plants by a team of American scientists. Unlike humans, plants are constantly creating new organs so there needs to be a tight regulation of cell division to ensure extraneous organs are not created. They discovered a cell wall modifying enzyme that controls cell division in the roots. This will allow scientists to better understand how plants develop and respond to changes in the environment, potentially leading to methods to increase crop yields and hardiness.
This article connects the topic of plant tissues with one we've previously focused on before: stem cells. Rather, pluripotent stem cells, which have recently been discovered as the key to regenerating those tissues, through priming gene expression to correlate with the plant's regeneration. This teaches us yet another potential use for stem cells, and reminds us how many more we'll discover within the next decade!
A recently published article (Apr. 12) shows how in the future, we can bring the most potential out of plants by knowing how their cells grow and divide. The researchers used root branching for their model, and found how genes expressed how the cell wall modifying enzyme was made,which controls cell divisions leading to a new root. This small, regulated change leaded to the discovery of the enzyme, but now researchers must figure out how to draw out the most of that enzyme as possible to make plants grow and reproduce more efficiently, but still with good quality.
Read more about the article here: https://www.eurekalert.org/pub_releases/2019-04/vfi-khc041219.phphere:
Plant regeneration can occur via the formation of a mass of pluripotent cells. The process of acquiring of pluripotency involves the silencing of genes to remove original tissue memory. A team of scientists have shown that plant regenerative capacity requires a certain demethylase that can prime gene expression in response to regenerative cues. The demethylation (removal of a methyl group from the amino acid) of the histone H3 by the LDL3 enzyme lends regenerative competency to the plant. This epigenetic mechanism allows the plant's pluripotent cells to go back to its unipotent state and thus assume the identity of shoot meristems for differentiated tissues including leaves and stems. By strengthening the ability of plants to reproduce, even without seeds, it can address environmental problems by promoting greening and solve the global food shortage problem.
Remember: when you're eating a pear, your teeth are fighting against a bunch of "little rocks"! Pear tastes gritty because it contains schlerenchyma tissue: a type of tissue with a type of cell found in many plant seeds, which have a substance called lignin that helps hardens the cells. This is because pears are the ovary of the pear trees, so having this support makes sure the seeds within doesn't get damaged before they become individual plants.
This article talks about the vital role of silicon in plant tissue. Silicon is beneficial for the plant's growth, development, and to alleviate nutrient imbalances. There are also benefits to the tissue medium which include plant enhancement to low temperature, protect cells, and tries to prevent metal toxicity.
This article takes an overview on plants. The main characteristic of plants is their ability to make their own food through a process called photosynthesis. Plants use energy from the sun and water to create glucose and carbon dioxide. There are several varieties of plants, particularly, two major ones; vascular and non-vascular. Vascular plants have particular tissues within them that allow them to transport materials throughout the plant. Non-vascular plants are relatively small in size and they transport materials throughout the plant by diffusion and osmosis. There are three main parts to a vascular plant: roots, stem, and leaf. Roots are located underground and take nutrients and minerals from the soil. They take in the water from the soil to be transported throughout the rest of the plant. In some plants, food is stored in the roots. The major structure of the plant supporting the flowers and leaves is the stem. Stems include vascular tissues which allow them to transport water and food throughout the plant and help it grow. Frequently food in plants is stored in the stems. The leaf in a plant is where photosynthesis occurs. Leaves take in energy from the sun and carbon dioxide from the air. Leaves are usually thin and paper flat in shape in order to increase surface area to take in as much sunlight as possible. Although, leaves do come in several shapes and sizes, form maple leafs to long needles.