Phloem In Sentences - Examples Of Phloem In Sentences

Search your words in sentences https://englishteststore.net/index.php?option=com_content&view=article&id=20211&Itemid=1131 - Feeding on the phloem prevents nutrients and water transportation. - In a stem or root this means that the xylem is closer to the centre of the stem or root while the phloem is closer to the exterior. - The potassium ions brought to the leaves along with the nitrate in the xylem are then sent along with the malate to the roots via the phloem. - Under this is the inner bark which is made of the phloem. - Phloem is produced in phases. - Damage occurs when emerald ash borer larvae feed on the inner bark, phloem, inside brands and tree trunks. - Phloem necrosis also is easily observed as dark concentric rings or linear streaks in cross section or longitudinal section of the taproot, respectively. - Those symptoms are related to callose deposition at the sieve plates and subsequent degeneration of the phloem. - As the stem increases in diameter due to production of secondary xylem and secondary phloem, the cortex and epidermis are eventually destroyed. - Both juvenile and adult whiteflies feed on the phloem of the leaves by inserting a sucker mouth part into the leaf, thereby transmitting the virus to the plant. - During this process of entering into the cambium, the pathogen kills the phloem and initiates the decay of the xylem. - The phloem, which mostly transports products of photosynthesis from the leaves down to the roots, forms the innermost layer of bark. - Most of these cells transform into xylem and phloem. - The phloem tissue consists of sieve tubes and their companion cells. - The inner bark cambium and phloem tissues are living, and form a new protective layer of cells as the outer bark pulls apart. - In late winter and early spring, water in the phloem, known as the inner bark and in the xylem, known as the wood, expands and contracts under often significantly fluctuating temperatures. - Secondary growth consists of a progressive thickening and strengthening of the tissues as the outer layer of the epidermis is converted into bark and the cambium layer creates new phloem and xylem cells. - Plants have developed a defence mechanism using salicylic acid pathway, which is also used in infection stress, when defending itself against phloem feeders. - The phloem and xylem are parallel to each other, but the transport of materials is usually in opposite directions. - The xylem typically lies on the adaxial side of the vascular bundle and the phloem typically lies on the abaxial side. - The vascular cambium forms between the xylem and phloem in the vascular bundles and connects to form a continuous cylinder. - Like all other planthoppers, they suck phloem sap of plants. - The leaf veins turn white first as the phytoplasma resides in leaf phloem tissue. - The larvae initially excavate cavities in the phloem and cambium and later galleries into the wood. - Phloem feeders, like aphids, do not cause a great deal of mechanical damage to plants, but they are still regarded as pests and can seriously harm crop yields. - The cortex rots gradually and the phloem tissues begin to flake off and the xylem rots. - Sugar and other compounds move via the phloem to tissues that have an energy demand. - After circularly cutting through the leaf, the trench overflows with sticky phloem sap that, through cohesion, sticks to form a semicircle around the beetle. - The phloem of the plant serves as the pathway for electrical communication, and as the plant grows and learns from its past, the phloem becomes increasingly cross linked. - While some trees have been known to survive, in most cases the combination of the tunnels through the xylem and phloem and the subsequent fungal infection prove lethal. - Diverse approaches are testing mechanisms of phloem function and carbon partitioning in maize and arabidopsis. - A Cuscuta haustorium growing into the phloem of the host plant. - The phytoplasma is then transmitted from the leafhopper to the tree when the leafhopper is feeding on the trees phloem. - Symptoms of the developing fungus include wet discoloration seeping from the beetle entry holes as the fungus begins to consume phloem and likely other tissues. - The virus is passively transported in the phloem and carried throughout the plant. - During feeding, aphids transmit the virus into phloem cells. - It supports the conductive cells of the phloem and provides strength to the stem. - Since the xylem and phloem function in the conduction of water, minerals, and nutrients throughout the plant, it is not surprising that their form should be similar to pipes.