1. Please Do Now: 1)What is the difference between a mobile nutrient and an immobile nutrient? 2) What is chlorosis?

2.  Do Now  Practice Macronutrients  Slides on identifying deficiencies  Practice identifying deficiencies  Quiz Prep

3.  Deficiencies of this secondary macronutrient appear as chlorosis between the veins

4.  Magnesium

5.  This secondary macronutrient is required for healthy cell wall growth

6.  Calcium

7.  This secondary macronutrient is found in high quantities in the cell walls of many plants, particularly grasses, and help fight off fungal infection

8.  Silicon

9.  Deficiencies of this secondary macronutrient resemble those of nitrogen, except this nutrient is immobile

10.  This macronutrient is the most important for leaf development

11.  Nitrogen

12.  When a plant is deficient in this macronutrient, the leaves look all wrinkled

13.  Calcium

14.  Plant use a symbiosis with mycorrhizal fungi to help them acquire this macronutrient

15.  Phosphorus

16.  This secondary macronutrient is a component of 2 of the 20 essential amino acids

17.  Sulfur

18.  This macronutrient is the center molecule in the pigment chlorophyll (Hint: not nitrogen)

19.  Magnesium

20.  This macronutrient is important because it helps regulate osmosis in the plant cells

21.  Potassium

22.  TWO STEPS: 1) Narrow down the possibilities by determining whether the nutrient is immobile or mobile 2) Based on the symptoms the plant is exhibiting, determine the specific nutrient

23.  If the nutrient the plant needs is mobile, the older leaves will show signs of deficiency  If the nutrient is immobile the newer leaves will show signs of deficiency

24.  Use what you know about the symptoms of nutrient deficiencies to determine which specific mobile or immobile nutrient is deficient  Mobile: Nitrogen: chlorosis, small leaves Phosphorus: purplish leaves, small fruits Potassium: edges of leaves brown, small roots Magnesium: splotchy leaf discoloration  Immobile Sulfur: Chlorosis, small leaves Calcium: Wrinkled leaves

25.  Kobe Bryant is using his off time to plant a garden of string beans. He notices that the newer leaves on the plant are all yellow and small, but the older leaves look healthy. What nutrient deficiency is his plant suffering from?

26. Immobile or mobile?

27.  Kobe Bryant is using his off time to plant a garden of string beans. He notices that the newer leaves on the plant are all yellow and small, but the older leaves look healthy. What nutrient deficiency is his plant suffering from? Immobile or mobile?

28.  Kobe Bryant is using his off time to plant a garden of string beans. He notices that the newer leaves on the plant are all yellow and small, but the older leaves look healthy. What nutrient deficiency is his plant suffering from?  It is immobile, so we know that it is either sulfur or calcium. What do the symptoms tell us?

29.  Kobe Bryant is using his off time to plant a garden of string beans. He notices that the newer leaves on the plant are all yellow and small, but the older leaves look healthy. What nutrient deficiency is his plant suffering from?  It is immobile, so we know that it is either sulfur or calcium. What do the symptoms tell us?

30.  Kobe Bryant is using his off time to plant a garden of string beans. He notices that the newer leaves on the plant are all yellow and small, but the older leaves look healthy. What nutrient deficiency is his plant suffering from?  It is immobile, so we know that it is either sulfur or calcium. What do the symptoms tell us?  Sulfur

31.  What are the three primary macronutrients?  What nutrients are symbionts involved in obtaining for the plant?  What nutrient is most often limiting in agricultural settings?