Regulation of Plant Mineral Nutrition by Signal Molecules

“truly” quorum sensing signal molecules, a few more criteria must be met: must be actively exuded by host roots into the rhizosphere; act extracellularly; high specificity of response; response should be at physiological concentrations; beneficial to the community; a direct correlation between cell density and SLs concentration; and response must occur above a threshold concentration

Vipin Chandra Kalia

Scholarcy highlights

  • “truly” quorum sensing signal molecules, a few more criteria must be met: must be actively exuded by host roots into the rhizosphere ; act extracellularly ; high specificity of response ; response should be at physiological concentrations ; beneficial to the community; a direct correlation between cell density and SLs concentration; and response must occur above a threshold concentration
  • The most beneficial for improving the productivity of agricultural crops are the nitrogen-fixing bacteria and phosphate solubilizing mycorrhizal fungi. These biological processes can be most efficient if their expressions are well synchronized with the needs of the host and microbes
  • The abilities of the plants and microbes to communicate with each other can be exploited for regulating specific gene expressions
  • Cow pea, and soybean exude signal molecules, which facilitate the entry of bacteria, into the roots of M. truncatula leading to nodule formation
  • Using leguminous plants in combination with rhizobia and fungi, it is possible to enrich soil with N and P, which in turn will aid in improving the yield of other non-leguminous crop plants specially cereals
  • Multiple organism approach may bring us closer to “nitrogen-fixing” cereals

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