Symbiotic relationships with Nitrogen-fixing Bacteria: Rhizobium bacteria normally inhabit the soil. Suggest why nodules are found on the stems of Sesbania? The roots of the Sesbania are often underwater or in flooded soils that do not contain much N2. Bacteria live best above the ground. Sesbania only use the nitrogen in the upper portion of the plant so they do not need to make nodules on their roots. Bacteria will drown under water.

Q: A group of researchers wanted to determine how leaf herbivory and seed production of a legume plant…

A: The leguminosae, being the 3rd largest plant family has symbiotic relationship with root colonisers…

Q: How do mycorrhizae function as biofertilisers? Explain with example.

A: Mycorrhizal association is a mutual relationship between the mycorrhizae (soil fungi) and plant…

Q: Allelopathic chemicals are molecules made by one species that harm or kill another species. Which…

A: Introduction :- Allelopathy is a biological phenomena in which one or more biochemicals produced by…

Q: Alcobiosis, an algal‑fungal association on the threshold of lichenisation 1. What two organisms are…

A: Lichens are composite organisms consisting of a mutualistic association between a fungus and a…

Q: To explain: The way in which the plants with nodules for nitrogen-fixing bacteria might…

A: Answer--- Nitrogen fixing bacteria are organisms that are able to convert atmospheric nitrogen into…

Q: You are examining a soil sample under a microscope and find a spore in the sample. What kind of…

A: Gametes are the sexual reproduction agents, whereas spores are the asexual reproduction agents.…

Q: Whichof the following is NOT an agent of nitrogen fixation?a.Mycorrhizal fungib.Cyanobacteria…

A: Nitrogen is an essential element required for all living organisms. It is a constituent of various…

Q: Mycorrhiza – What is mycorrhiza? Describe the differences between the two main categories…

A: Introduction Fungi are a diverse group of organisms that are found in almost every ecosystem on…

Q: What do hyphae do for a plant partner in a mycorrhizal association? O they increase the surface area…

A: Symbiosis refers to the close biological association between two different species that is…

Q: The agent of gas gangrene is classified as an based on its oxygen sensitivity so in addition to…

A: The death of the body tissue is referred to as gangrene. Gas gangrene is a form of gangrene caused…

Q: Which of the following plant pathogens have had a large impact on civilization over the years?…

A: Plant pathogens are those that cause infections in plants .

Q: Why would it be disadvantageous for a plant to form a symbiotic relationship with a mycorrhizal…

A: Symbiotic relationship involves two different organisms are interacting in close physical…

Q: Why might a soil bacteria (Azotobacter) have the ability to fluoresce? How does fluorescence differ…

A: Soil bacteria are microorganisms that live in soil and play critical roles in a variety of soil…

Q: Saprophytic fungi are capable of performing photosynthesis O capable of decomposing organic matter…

A: Saprophytic fungi form a major group of fungi present in soil. These fungi are incapable to perform…

Q: The filaments growing into the agar are and function in

A: Ans. A fungus is one in which microorganisms like yeast and mold are in a community of eukaryotic…

Q: ompost Microbe part 2: structures he round objects at the end of the branching filaments are_ and…

A: Asexual spores are formed after mitosis (mitospores) without the involvement of meiosis. Sexual…

Q: Rhizobium is important agriculturally because it supplies __________ to plants such as peas and…

A: Rhizobium is a rod shaped bacterium which are found in the roots of leguminous plants such as sweet…

Q: Why is nitrogen fixation important? Color of the Hydra. Why is it this color?

A: Composition of air The layer of air above the earth is the atmosphere. Air is a mixture of gases.…

Soil Ecosystem

Soil provides a habitat or living environment for a large number of different species of organisms as well as plants. It provides all the essential nutrients and minerals for plants to grow. All these together form the soil ecosystem.