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1. www.sciencedirect.com › topics › agricultural-andNodulation - an overview | ScienceDirect Topics

   www.sciencedirect.com › topics › agricultural-and

   Nodulation is a symbiotic process leading to the formation of nodules when Leguminosae roots are infected by rhizobia bacteria from soil. The bacteria in nodules convert atmospheric nitrogen to ammonium or nitrogen dioxide, which can be utilized for plant growth and development (Mylona et al., 1995).

   • Stem Nodules

     Stem Nodules. In subject area: Agricultural and Biological...

2. library.fiveable.me › key-terms › college-bioNodules - (General Biology I) - Vocab, Definition ... - Fiveable

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   Definition. Nodules are specialized structures formed on the roots of certain plants, particularly legumes, where symbiotic nitrogen-fixing bacteria reside. These bacteria convert atmospheric nitrogen into a form that plants can readily use for growth and development.

3. geo.libretexts.org › Bookshelves › Soil_Science1: Introduction to Soil Science and Soil Formation

   geo.libretexts.org › Bookshelves › Soil_Science

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   Jun 26, 2021 · Learning Objectives. To recognize the variety of sub-disciplines that exist within soil science. To define “soil”. To understand the primary soil forming factors and processes. To learn the concepts and methods used for identifying and describing soils (color, structure, texture)

4. www.nrcs.usda.gov › sites › defaultA Glossary of Terms Used in Soil Survey and Soil Classification

   www.nrcs.usda.gov › sites › default

   For soil science students and soil survey practitioners who want more than a simple definition, this glossary offers additional information for a deeper understanding. A wide array of terms are included.

5. www.sciencedirect.com › stem-nodulesStem Nodules - an overview | ScienceDirect Topics

   www.sciencedirect.com › stem-nodules

   Stem Nodules. In subject area: Agricultural and Biological Sciences. The term `stem nodules' would be reserved for nodules `whose location prevents contact with the soil and whose formation is initiated on a primordium and not on an outgrowing adventitious root'. From: Biochimica et Biophysica Acta (BBA) - Bioenergetics, 1998.

6. www.stem.org.uk › 151880 › nodule-experimentNodule experiment - STEM Learning

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   Nodule experiment. In this activity students carry out an investigation to find out how the concentration of nitrate in the soil affects the growth of root nodules on peas.

7. People also ask

   What is a nodule in soil?

   • Nodule.—A kind of concentration within a soil horizon consisting of a chemical compound, such as calcium carbonate, iron oxide, or hydrated amorphous silica (opal), that is cemented to form a discreet body. It can be removed from the soil intact and has no evident orderly internal organization.

   A Glossary of Terms Used in Soil Survey and Soil Classification

   www.nrcs.usda.gov/sites/default/files/2022-08/A_Glossary_of_Terms_Used_in_Soil_Survey_and_Classification.pdf

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   Do all nodulated plants have a predisposition to form nodules?

   • Recent molecular evidence has placed all nodulated plants in a distinct group, known as the Rosid I clade. However, the clade also contains many genera that lack the ability to nodulate. If, as is generally assumed, all members of the clade have some predisposition to form nodules, why is it only expressed in certain genera?

   Nodulation - an overview | ScienceDirect Topics

   www.sciencedirect.com/topics/agricultural-and-biological-sciences/nodulation

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   Which type of nodules are recognized as diagnostic features in soil taxonomy?

   • Durinodes and iron/manganese nodules are specific kinds of nodules recognized as diagnostic features in Soil Taxonomy. Calcium carbonate nodules are considered a kind of identifiable secondary carbonate. Nodules are similar to concretions but concretions have evident internal organization.

   A Glossary of Terms Used in Soil Survey and Soil Classification

   www.nrcs.usda.gov/sites/default/files/2022-08/A_Glossary_of_Terms_Used_in_Soil_Survey_and_Classification.pdf

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   How do you get a nodule in a legume?

   • Entry may be gained via root hairs, as in many legumes and actinorhizal genera such as Alnus or by penetration between epidermal cells or at the point of emergence of lateral roots (adventitious roots in stem-nodulating legumes). Subsequent to the initial infection, nodule development in legumes and actinorhizal plants proceeds in different ways.

   Nodulation - an overview | ScienceDirect Topics

   www.sciencedirect.com/topics/agricultural-and-biological-sciences/nodulation

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   Why are nodulins called nodules?

   • The transcription of enzymes for N assimilation, carbon utilization, nodule development, etc., is often induced to high levels during nodulation. Originally, some of these genes were thought to be nodule specific and, therefore, their products were given the special name, nodulins.

   Nodulation - an overview | ScienceDirect Topics

   www.sciencedirect.com/topics/agricultural-and-biological-sciences/nodulation

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   What is a soil horizon containing nodules?

   • Soil horizons containing nodules (or concretions) are indicated with the suffix “c” (e.g., Bsc, Bgc). See concretion. Normal year.—A term used throughout the Keys to Soil Taxonomy as part of the criteria for determining the class of soil moisture regime from long-term (30 years or more) precipitation data.

   A Glossary of Terms Used in Soil Survey and Soil Classification

   www.nrcs.usda.gov/sites/default/files/2022-08/A_Glossary_of_Terms_Used_in_Soil_Survey_and_Classification.pdf

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8. greenpacks.org › nodules-in-plantsNodules In Plants: Understanding Their Role - Green Packs

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   Understanding the formation, function, and importance of nodules is essential for sustainable agriculture, soil fertility management, and ecosystem health. Further research and innovation in this field hold the potential to revolutionize farming practices and address the challenges of feeding a growing global population.