SPECIAL nutritional strategies in plants Flashcards
unique ways plants acquire nutrients and water to thrive in various environmental conditions, including symbiotic relationships and adaptations to nutrient limitations.
special nutritional strategies in plants
are symbiotic relationships where fungi help plants absorb water and nutrients, particularly phosphorus, and the plant provides carbohydrates to the fungus.
mycorrhizal associations in plants
What is the role of fungi in mycorrhizal associations?
Fungi in mycorrhizal associations help plants absorb water and essential nutrients, especially phosphorus, from the soil.
Fungi in mycorrhizal associations help plants absorb water and essential nutrients, especially phosphorus, from the soil.
nitrogen fixation in plants
How do rhizobia bacteria aid plants in nitrogen fixation?
Rhizobia bacteria in legume root nodules convert atmospheric nitrogen into ammonia, which the plant can use for growth.
are molecules secreted by certain plants, like grasses, to chelate iron in the soil, making it more available for the plant to absorb.
phytosiderophores
How do phytosiderophores assist in iron uptake
Phytosiderophores bind to iron in the soil, solubilizing it and making it easier for the plant to take up the iron.
changes in root system structure to access water and nutrients, such as deep roots for dry environments or shallow roots for wet environments.
root adaptations in plants
How do plants adapt their root systems in dry conditions?
In dry conditions, plants often develop deep roots to access water deep in the soil.
How do plants adapt their root systems in wet environments?
In wet environments, plants often develop shallow roots to quickly absorb water from the surface.
How do lateral roots help in nutrient uptake?
Extensive lateral roots increase the surface area for nutrient absorption, maximizing nutrient uptake from the soil.
like mistletoe, lack chlorophyll and obtain nutrients by parasitizing other plants.
parasitic plants
How do parasitic plants obtain nutrients?
Parasitic plants obtain nutrients by attaching to and parasitizing other plants, bypassing the need for photosynthesis.
What strategy do plants use to cope with low phosphorus soils?
Plants may develop extensive root systems or form mycorrhizal associations to access limited phosphorus in the soil.
How do plants adapt to iron-deficient soils?
Plants secrete chelating compounds like phytosiderophores to solubilize and increase iron availability for uptake.
How do plants adapt to nitrogen-poor environments?
Leguminous plants form symbiotic relationships with nitrogen-fixing bacteria in their root nodules to convert atmospheric nitrogen into a usable form.
What is the symbiotic relationship in nitrogen fixation?
In nitrogen fixation, rhizobia bacteria live in legume root nodules, converting nitrogen from the air into ammonia that plants can use.
How do mycorrhizal associations help in phosphorus uptake?
Mycorrhizal fungi help plants absorb phosphorus from the soil, especially in nutrient-poor soils where phosphorus is limited.
What adaptive strategy do plants use to access water in different environments?
Plants adapt by developing different root systems: deep roots for dry conditions, shallow roots for wet conditions, or extensive lateral roots for nutrient-rich environments.
How do plants adapt to nutrient scarcity in soils?
Plants adapt by forming symbiotic relationships, developing specialized root systems, or secreting compounds to enhance nutrient uptake from poor soils.
