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Related Concept Videos

Transcription01:10

Transcription

146.3K
Overview
Transcription is the process of synthesizing RNA from a DNA sequence by RNA polymerase. It is the first step in producing a protein from a gene sequence. Additionally, many other proteins and regulatory sequences are involved in the proper synthesis of messenger RNA (mRNA). Regulation of transcription is responsible for the differentiation of all the different types of cells and often for the proper cellular response to environmental signals.
Transcription Can Produce Different Kinds...
146.3K
Defenses Against Pathogens and Herbivores02:26

Defenses Against Pathogens and Herbivores

22.8K
Plants present a rich source of nutrients for many organisms, making it a target for herbivores and infectious agents. Plants, though lacking a proper immune system, have developed an array of constitutive and inducible defenses to fend off these attacks.
22.8K
Responses to Salt Stress02:02

Responses to Salt Stress

12.9K
Salt stress—which can be triggered by high salt concentrations in a plant’s environment—can significantly affect plant growth and crop production by influencing photosynthesis and the absorption of water and nutrients.
12.9K

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A Hydroponic Co-cultivation System for Simultaneous and Systematic Analysis of Plant/Microbe Molecular Interactions and Signaling
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Alfalfa transcriptomic responses to the field pathobiome.

L G Nemchinov1, B M Irish2, S Grinstead1

  • 1USDA-ARS, Beltsville Agricultural Research Center, Molecular Plant Pathology Laboratory, Beltsville, Maryland, USA.

Plant Biology (Stuttgart, Germany)
|April 15, 2025
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Understanding the alfalfa pathobiome is crucial for plant health. This study identified genes and pathways involved in alfalfa

Keywords:
Medicago sativa L.field host genomicspathobiometranscriptomics

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Area of Science:

  • Plant Pathology
  • Genomics
  • Ecology

Background:

  • The alfalfa pathobiome, encompassing all disease-causing organisms and their interactions, significantly impacts plant health.
  • Understanding its role in natural ecosystems is limited.
  • Previous work characterized the alfalfa pathobiome's composition in field production.

Purpose of the Study:

  • To investigate gene expression changes in alfalfa plants exposed to a field pathobiome.
  • To identify the genetic basis of alfalfa's resistance to multi-pathogenic infections.
  • To propose a 'field host genomics' approach for studying plant-pathogen interactions.

Main Methods:

  • Transcriptomics analysis of visually healthy and diseased alfalfa plants from commercial fields.
  • Computational analyses to survey gene expression.
  • Application of a novel 'field host genomics' strategy.

Main Results:

  • Identified specific genes and pathways involved in alfalfa's response to the pathobiome.
  • Elucidated the genetic underpinnings of resistance to diverse field pathogens.
  • Demonstrated the utility of the 'field host genomics' approach.

Conclusions:

  • The study provides genetic insights into alfalfa's resistance mechanisms against complex field pathobiomes.
  • The 'field host genomics' approach can identify tolerant alfalfa genotypes.
  • Findings support the application of these genotypes in future alfalfa breeding programs.