Study The Phhysio-Biochemical Responses In Plant Growth Discussion?

vulgaris plants, via the formation of a standard curve prepared using varying concentrations of bovine serum albumin (BSA) solution. Following absorbance readings of the various BSA solutions, they were plotted against their concentrations providing an indirect measure for determining protein concentrations of the plant samples within the assay tubes, and through further calculations the sample protein concentration. The mean protein concentration for the control group was calculated to be 3.34 ± 1.30 mg/mL, while the mean treated group concentration was 2.01 ± 1.26 mg/mL. These results similarly like the chlorophyll results correlate with the literature articles, as a reduced protein content within the Paraquat treated plants can be expected to some extent (Chia et al., 1981). This reduction in protein concentration is the result of those superoxide anions produced by Paraquat, disrupting the chloroplast membranes and allowing for intracellular components including some proteins to leak out, hence the decrease in protein concentration in comparison to the non-treated plants (Qian et al., 2009). A slight outlier may exist within the treated groups protein concentrations as one of the groups provided a negative value for protein concentration which is not valid, but even after exclusion of that data value, results are still supportive of the expected outcome. Though these results support the claim of Paraquat toxicity causing membrane deterioration and leakiness, protein concentration values are rather more purposeful when used to analyze malondialdehyde (MDA) values on per mg of protein

Protecting the environment from toxic contaminants such as pesticide, herbicide, and other Solvents are vital to the survival of the inhabitants of the respective environment. This is important because such contaminants, when released into the environment can create devastating health problems such as cancer in humans. This paper will evaluate three of the many carcinogenic chemicals that have the propensity to cause cancer and other health problems. Therefore, the paper will evaluate Agent Orange, DDT, and Benzene.

Protecting the environment from toxic contaminants such as pesticide, herbicide and other Solvents are vital to the survival of the inhabitants of the respective environment. This is important because such contaminants, when released into the environment can create devastating health problems such as cancer in humans. This paper will evaluate three of the many carcinogenic chemicals that have the propensity to cause cancer and other health problems. Therefore, the paper will evaluate Agent Orange, DDT, and Benzene.

The pH of soil is important for the absorption of nutrients into the plant. Of the 17 needed plant nutrients 14 of them are acquired through the soil. Acidity is needed to break down and dissolve these nutrients. The nutrients are able to dissolve into the soil faster when the acid is acting as a solute. Another way the pH affects the soil is by influencing microorganisms. The bacteria is crucial in the growth and development of the plant, the bacteria’s role is to break down and decompose organic matter in the soil. If the pH of the soil is too high the acid will slow down and eventually stop the microorganisms. Most plants ideal pH is between 6-7, slightly acidic. Many plants are outliers and thrive in pH such as carrots and corn, which can withstand pH as low as 5.5. If the pH of the soil is too high for the desired crop farmers can add material such as limestone, and wood ashes to raise the pH to the desired level. The pH of the soil can also be changed naturally through the leaching of calcium, magnesium and sodium by rainwater. Carbon dioxide from rotting organic matter can also increase the pH of the soil. Acids can also be created organically in the form of sulfuric and nitric

Nutrients that are obtained from the soil from plant roots are nitrogen, Phosphorus, Potassium, Sulfur, Magnesium, Calcium, Iron, Boron, Manganese, Zinc, Molybdenum, Copper. These twelve elements that are obtained from the soil are called mineral nutrients which are then split into more groups; primary, intermediate and micronutrients (Essential Nutrients, n.d.). Primary nutrients are called by its name because they needed and are found in the most amounts. Primary nutrients include nitrogen, phosphorous and potassium. The intermediate nutrients are sulfur, magnesium and calcium which are found less in soil than primary nutrients. Primary and secondary nutrients are called macronutrients. Iron, boron, manganese, zinc, molybdenum and copper are called micronutrients because they are needed in very small amounts. So small in fact that they are needed in parts per million, where 10000 parts per million is 1% of the plants intake (Essential Nutrients, n.d.). This doesn’t mean that the plant won’t grow as well without it though, these nutrients can still be essential to maximum growth spurt (Essential Nutrients,

TCDD is a dioxin that can be produced through diesel exhaust, burning waste, and chemical manufacturing. In recent years, many have argued that exposure to this chemical can cause serious illnesses. Studies on animals have shown that TCDD is one of the most poisonous chemicals out there. The animal testing has been found to be especially toxic to developing babies in the womb. A pregnant rat given a dose of less than one part per billion (which is comparable to a single drop in 14,000 gallons of water) will cause female sexual characteristics in a male embryo. Doses of 100 parts per billion in rodents and fish have been proven to cause birth defects such as cleft palates, malfunctioning kidneys, heart problems, and weak bones (Schmidt). Animal studies have proven that small doses of TCDD can be severely detrimental to one’s

Minerals from animal products are absorbed better as binders such as fiber in plant foods are not present to hinder absorption. The mineral content of plants greatly depends on mineral concentrations of the soil in which they are grown. Refined plant food has a lower content of minerals.

In this lab the effect of changing the pH of water that leaf disks were submerged into to find the effect on the ET50 time of plants. The hypothesis was that if the pH is closer to a normal water pH than the ET50 time will be the smallest. This lab was conducted to see what different variables change the amount of time needed for photosynthesis to occur(ET50) . This is important because of acid rain being present in the world with climate change and the effect it can have on plants which has large tolls. Previous studies have shown that acid rain and a change in pH can have damaging effects on plants. One study, showed that, acid rain destroyed the chloroplast of soybeans the location of photosynthesis in plants which disrupted photosynthesis

Inorganic phosphate (Pi) is a key nutrient for plants and it is involved in a myriad of metabolic processes and functions that allow their growth and development. Since it is such an important nutrient its uptake, transport, storage and usage are tightly regulated. Never the less the reduced availability of Pi in the ground is a mayor limiting factor. When phosphate starvation occurs the plant has to adapt to survive. Such stress triggers a distinct phenotype in the root such as an increase in root hair length and density, as well as an increase in the ratio root/shoot and proliferation of lateral roots. The changes in root architecture are also accompanied by changes in metabolic processes such as photosynthesis, glycolysis, carbon fixation,

However, the plants live in a better state when sunlight, water and soil nutrients combine with the protein added (Nickens, 2008). In an experiment, a group observed the reaction of carnivorous plants to the limitation of minerals and what happens when they have enough minerals and when they are fed insects. Their conclusion was that most of the plants grew rapidly when they were fed a combination of insects and minerals. (Adamec, 1997). Another project involved vascular plants and their reaction to different environments. The venus flytrap reacted better in a sandy, acidic, low fertility, and wet environment (Luken,

Plant foods contain three essential nutrients that are not readily available from soils. These are soluble compounds of nitrogen, phosphorus, and potassium. A typical label on a plant food will have a set of numbers such as 15-30-15. These numbers mean that the plant food is guaranteed to contain at least 15% nitrogen, 30% phosphorus (expressed as P2O5) and

The main goal of this experiment was to identify the unknown sunflower plants and to determine which nutrient was missing from each one. Two samples of each nutrient were created and placed into mason jars with the plants. The plants were allowed for grow for 3 weeks, with each having varying changes over time. In order to complete our goal, we had to carefully analyze the samples and compare and contrast their different symptom traits. This was done because it allows a first-hand look at the effects of nutrient deficiency on plants which allows a better understanding of plant mineral nutrition. The symptoms presented show that the specific loss of a nutrient can lead to varying side effects ranging from slight deformities to severe deterioration.

Five figures and 1 table are correctly labeled and clearly presented in this study. As expected, with the ozone treatment increase, the leaf injury increase and biomass decrease. Through reduction of ethylene and nodule growth at specific time interval or in specific cultivar was detected, further studies on the effects of nodule growth, biomass and N-assimilate ability are needed, because the mechanism behind these effects is also partly unclear.

It is predicted that the removal of plant nutrients in general will result in stunted growth and death of the plant. If phosphurus is removed from a plant, effects will include stunted growth, An abnormal dark green colour, and a reddish-purple pigment excess amounts of sugars. Phosphorus is a component of the complex nucleic acid structure of plants, which regulates protein synthesis. Phosphorus is, therefore, important in cell division and development of new tissue. Phosphorus is also associated with complex energy transformations in the plant. This is why phosphurus deficiency in plants will cause stunted growth. Phosphurus deficent plants will have a dark green colour due to the fact that phosphurus deficiency causes excess biuildup of

The plants that grow in saline soils have diverse ionic compositions and a range in concentrations of dissolved salts (Volkmar et al., 1998). These concentrations fluctuate because of changes in water source, drainage, evapo-transpiration, and solute availability (Volkmar et al., 1998). Due to these varying conditions, plant growth depends on a supply of inorganic nutrients, and this level of nutrients varies in time and space (Maathius and Amtmann, 1999). Either extreme condition concerning nutrients results in deficiency or toxicity in plants, and this is demonstrated by salt tolerance (Maathius and Amtmann, 1999). These conditions vary according to the plant species and growth conditions. Little is known about the genetic basis for diversity of salt tolerance in plants, and this could be partly explained through the definitions given for salinity.