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Assessing the Particulate Matter Removal Abilities of Tree Leaves
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Simple methods to remove microbes from leaf surfaces.

J Paola Saldierna Guzmán1,2, Kennedy Nguyen3, Stephen C Hart1,2,4

  • 1Quantitative and Systems Biology, University of California, Merced, California.

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|June 13, 2020
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Summary
This summary is machine-generated.

Reliable surface sterilization is crucial for studying plant endophytes. Scanning electron microscopy (SEM) effectively verifies epiphyte removal and assesses leaf damage, ensuring accurate analysis of endophytic microbes.

Keywords:
Pinus contortaPopulus fremontiiendophyteleaf surface sterilizationscanning electron microscopy (SEM)

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Area of Science:

  • Microbiology
  • Plant Science
  • Botany

Background:

  • Endophytes are microorganisms residing within plant tissues.
  • These microbes are studied for their beneficial plant growth-promoting traits.
  • Accurate endophyte analysis necessitates complete removal of epiphytic microorganisms.

Purpose of the Study:

  • To evaluate the reliability of standard surface sterility tests.
  • To assess the efficacy of various sterilization protocols on different leaf morphologies.
  • To determine the impact of sterilization on leaf tissue integrity.

Main Methods:

  • Utilized scanning electron microscopy (SEM) for epiphyte removal assessment.
  • Applied diverse sterilization protocols to gymnosperm and angiosperm leaves.
  • Evaluated leaf tissue damage using SEM.

Main Results:

  • Established tests like PCR and leaf imprints were found unreliable for surface sterility.
  • Complete removal of the leaf cuticle ensures epiphyte loss.
  • Leaf morphology influences the required sterilization protocol.

Conclusions:

  • SEM is a valuable tool for validating surface sterilization effectiveness.
  • Appropriate sterilization protocols are essential to avoid misinterpreting host-endophyte interactions.
  • Different tree species may require tailored sterilization methods.