Plant Nutrient Uptake
Plant Nutrient Uptake - Related Videos
09:13
Hydroponics: A Versatile System to Study Nutrient Allocation and Plant Responses to Nutrient Availability and Exposure to Toxic Elements
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Cited by 102 •
2016
Here, we present an easy-to-follow protocol to establish a successful hydroponic system for plant nutrition studies. This protocol has been extensively tested in Arabidopsis and can easily be adapted to other plant species to study specific nutritional requirements or the effect of non-essential elements on plant growth and development.
10:48
Nutrients in Aquatic Ecosystems
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2023
Source: Laboratories of Margaret Workman and Kimberly Frye - Depaul University Nitrogen and phosphorus are essential plant nutrients found in aquatic ecosystems and both are monitored as a part of water quality testing because in excess amounts they can cause significant water quality problems. Nitrogen in water is measured as the common form nitrate (NO3-) that is dissolved in water and readily absorbed by photosynthesizers such as algae. The common form of phosphorus measured is phosphate...
13:31
Soil Nutrient Analysis: Nitrogen, Phosphorus, and Potassium
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2023
Source: Laboratories of Margaret Workman and Kimberly Frye - Depaul University In this experiment, three soil macronutrients are chemically extracted, combined with color-based reagents, then analyzed using color to determine the nutrient concentration present in the soil sample. Nitrogen, phosphorus, and potassium are the main components of soil fertilizer. These methods isolate each nutrient from the soil into a solution that can be analyzed using turbidity and color to determine the...
13:14
Measuring Fluxes of Mineral Nutrients and Toxicants in Plants with Radioactive Tracers
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Cited by 9 •
2014
In planta measurement of nutrient and toxicant fluxes is essential to the study of plant nutrition and toxicity. Here, we cover radiotracer protocols for influx and efflux determination in intact plant roots, using potassium (K+) and ammonia/ammonium (NH3/NH4+) fluxes as examples. Advantages and limitations of such techniques are discussed.
03:13
Competence-Induced DNA Uptake in Staphylococcus aureus
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2025
Source: Cafini, F., et.al. Methodology for the Study of Horizontal Gene Transfer in Staphylococcus aureus. J. Vis. Exp. (2017)This video demonstrates competence-induced DNA uptake in Staphylococcus aureus through natural transformation. A chloramphenicol-sensitive strain engineered to constitutively express a sigma factor is cultured under nutrient-limiting conditions to enhance competence, then incubated with donor DNA carrying a resistance gene. Successful gene transfer is confirmed by the...
FAQs
Membrane transport proteins control which mineral ions enter root cells, including nitrate, phosphate, and potassium. Their activity reflects both concentration gradients and energy supplied by ATP, allowing uptake to be selective rather than indiscriminate. This selectivity helps plants acquire particular nutrients needed to support tissue function, growth, and metabolism.
Root hairs enlarge the contact surface available for absorption, whereas mycorrhizal fungi can improve a plant’s access to nutrients in soil. These contributions act at different biological interfaces: root hairs are extensions of the root system, while fungi provide an additional association. Together, they can strengthen nutrient acquisition when soil access is limited.
Availability in the soil is not the only determinant of uptake. Soil pH and moisture influence whether nutrients can be accessed, while root physiology affects how effectively roots absorb them. Consequently, the same plant may experience different nutrient acquisition outcomes when environmental conditions or the functional state of its roots change.
A study should account for nutrient availability, soil pH, moisture, and root physiology, because each is identified as an influence on uptake. It should also consider movement into tissues and the roles acquired nutrients play in growth, metabolism, and reproduction. These factors help researchers interpret uptake in relation to overall plant function.
Information about uptake can guide both crop productivity research and fertilizer management. Because acquisition changes with soil conditions and root physiology, nutrient applications cannot be considered independently of the growing environment. Understanding these relationships helps connect mineral access with plant performance and supports decisions about how nutrient availability is evaluated in agricultural systems.
In plant biology, nutrient uptake links the environment around roots with processes occurring throughout the plant. Mineral acquisition supplies elements associated with growth, metabolism, and reproduction, while variation in access helps explain plant adaptation to nutrient-poor environments. This makes uptake relevant not only to individual plants, but also to broader studies of environmental response.