How mycorrhizal types control biodiversity effects on productivity

Mycorrhizal symbiosis helps plants expand their root surface area, giving plants greater access to nutrients and water. Although the first and foremost role of mycorrhizal symbiosis is to facilitate plant nutrition, how mycorrhizal ...

Using biocontrol yeast to curb kiwifruit soft rot

Postharvest kiwifruit is susceptible to various fungal pathogens, especially soft rot, causing massive industry losses. Due to scientific concerns about consumer health and the ecosystem, as well as increasing constraints ...

Scientists uncover coral-algae reward, punishment system

In human society, reward and punishment are introduced as an incentive to induce cooperation. However, some people still try to cheat to win. So, is there a system with clear rewards and punishments in the world of other ...

Crop waste cattle feed solution 'averts toxic fires'

Researchers in India have found a way to enhance the nutritional value of crop residue so that it can be fed to cattle, deterring farmers from setting it on fire, a practice that destroys soil nutrients and causes severe ...

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A nutrient is a chemical that an organism needs to live and grow or a substance used in an organism's metabolism which must be taken in from its environment. They are used to build and repair tissues, regulate body processes and are converted to and used as energy. Methods for nutrient intake vary, with animals and protists consuming foods that are digested by an internal digestive system, but most plants ingest nutrients directly from the soil through their roots or from the atmosphere.

Organic nutrients include carbohydrates, fats, proteins (or their building blocks, amino acids), and vitamins. Inorganic chemical compounds such as dietary minerals, water, and oxygen may also be considered nutrients. A nutrient is said to be "essential" if it must be obtained from an external source, either because the organism cannot synthesize it or produces insufficient quantities. Nutrients needed in very small amounts are micronutrients and those that are needed in larger quantities are called macronutrients. The effects of nutrients are dose-dependent and shortages are called deficiencies.

See healthy diet for more information on the role of nutrients in human nutrition.

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