Microbial Interactions

What is Mycorrhiza? Definition of Mycorrhiza Mycorrhiza refers to the symbiotic association between specific fungi and plant roots, where the fungus aids in nutrient and water uptake for the plant, and in return, the plant provides the fungus with essential nutrients produced through photosynthesis. Types of Mycorrhizae Mycorrhizae represent diverse symbiotic associations between fungi and

Host Pathogen Interaction What is Infection? Types of Infection Infectious agents (pathogens) that cause infections include: What is Invasion? A Survey of Bacterial Invasins Spreading Factors Enzymes that Cause Hemolysis and/or Leucolysis Typically, these enzymes act on the animal cell membrane by inserting into it (creating a pore that leads to cell lysis) or by

What is Nodule? Root Nodule Types In legumes, two major forms of nodules have been identified: determinate and indeterminate. Determinate nodules Indeterminate nodules Symbiosis Leguminous family Non-leguminous Root Nodule Formation Steps – Nodulation Briefly Describe When the soil contains a low concentration of nitrogen, root nodule development begins. The two symbiotic partners rely on cell

Microbe-Plant interaction Plants are immobile, but they are continuously subjected to both biotic and abiotic stress. Constant warfare exists between harmful microorganisms and the host plant, with the outcome determining resistance or disease. Plants exude a variety of organic substances, resulting in a nutrient-rich environment that is conducive to microbial growth. Therefore, plants are highly

Various sorts of positive and negative interactions between microorganisms and plants/animals have been described previously. Similar to humans, microorganisms communicate with one another and result in both beneficial and detrimental connections. In this context, the following interactions and interrelationships have been discussed: 1. Symbiosis between Alga and Fungus (Lichens) Classification Based on the nature of

What is Symbiosis? Symbiosis, derived from the Greek words “σύν” (sýn) meaning “together” and “βίωσις” (bíōsis) signifying “living,” refers to a prolonged biological interaction between two distinct species, known as symbionts. This interaction can manifest in various forms, ranging from mutualistic, where both entities benefit, to commensalistic, where one benefits without harming the other, and

What is Mutualism? Mutualism is simply a partnership between two animals that benefits both. This link may exist either inside the species or between species. The organisms involved in this connection are known as symbionts. All living species, including humans, animals, birds, plants, and microbes such as bacteria, viruses, and fungi, exhibit interdependence. Mutualism resembles

What is Competition Interaction? Competition is defined as an interaction between two or more individuals of the same population or between two or more populations in which each adversely affects the other’s access to limited resource(s) (food, water, nesting sites, shelter, mates, etc.). Mutualism is defined as a population interaction that benefits both parties. Competitive

Short-term interactions 1. Predation Example of Predation 2. Pollination Example of Pollination 3. Seed dispersal Example of Seed dispersal Symbiosis: long-term interactions Mutualism, commensalism, parasitism, neutralism, amensalism, and competition are the six forms of symbiosis. These are distinguished by the extent to which they benefit or hurt each partner. 1. Competition Example of Competition 2.

What is Predation? – Predation Definition Characteristics of Predators 1. Physical adaptations 2. Diet and behaviour 3. Camouflage and mimicry 4. Venom 5. Electric fields 6. Physiology Types of Predators Predation comes in four main forms: 1. Carnivory Example of Carnivorous Predation 2. Herbivory Example of Herbivorous Predation 3. Parasitism Examples of Parasitic Predation 4.