1) \"Biotrophic interfaces that are formed between plant roots and the fungus re
ID: 64690 • Letter: 1
Question
1) "Biotrophic interfaces that are formed between plant roots and the fungus result from recognition of exchanged cues"; "Nematodes perceive the enivronment through chemosensory perception"; "Coordinated activity among microbial cells [note: they mean bacteria] using diffusible chemical signals is a widespread phenomenon". All three statements have similarities in how chemical signal, or molecular message, is received and turned into responsive behavior. That includes binding a cell membrane receptor, transferring the signal through the cytoplasm to the DNA, modifying DNA transcription with transcription factors, and activating or inactivating mRNA transcription.
What is the advantage of a mycorrhizal fungus, pathogenic nematode, or symbiotic bacteria, having receptors for a multitude of plant species?
Explanation / Answer
Plants in natural climate are exposed to diversified microorganisms. It results in microbial colonization of roots of the plants and rhizosphere. The symbiosis of a bacteria or fungus leads to development of plant growth promoting organisms. The response showed for early infection is similar in insect parasitic nematodes attack or in symbiosis with higher plants. Different microorganisms produce receptors of different specificity. This related specificity to receptor will help in migration of the pathogen into the interior of the cell to establish a relationship with the host. Specificity is observed in interaction between the host and the partner (pathogen/parasite/symbiotic).
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.