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Transport in Plants and Plant Nutrition

Transport in Plants and Plant Nutrition. Fred Searcy BSC1011C. Three Levels. Uptake & release of water and solutes by individual cells short distance transport (sugar in leaf to phloem) long distance transport. Factors. Membrane Transport proton pump cotransport chemiosmosis cohesion

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Transport in Plants and Plant Nutrition

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  1. Transport in PlantsandPlant Nutrition Fred Searcy BSC1011C

  2. Three Levels • Uptake & release of water and solutes by individual cells • short distance transport (sugar in leaf to phloem) • long distance transport

  3. Factors • Membrane Transport • proton pump • cotransport • chemiosmosis • cohesion • adhesion

  4. (a) = trans-membrane (b) = symplastic c = apoplastic

  5. Transport of Xylem Sap • Transpiration • root pressure • guttation

  6. Translocation of Phloem Sap • Phloem Sap • water • sucrose (as much as 30%) • minerals • amino acids • hormones • Direction • sugar source to sugar sink

  7. Plant Nutrition • Mineral nutrients • essential elements absorbed in form of inorganic ions • Over 50 elements found in plants • Essential nutrient • macronutrients • micronutrients

  8. Macronutrients

  9. Micronutrients

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