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Related Concept Videos

Adaptations that Reduce Water Loss01:57

Adaptations that Reduce Water Loss

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Though evaporation from plant leaves drives transpiration, it also results in loss of water. Because water is critical for photosynthetic reactions and other cellular processes, evolutionary pressures on plants in different environments have driven the acquisition of adaptations that reduce water loss.
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Plant cells maintain appropriate osmotic balance in extreme conditions. For instance, plants in dry environments store water in vacuoles, limit the opening of their stoma, and have thick, waxy cuticles to prevent unnecessary water loss. Some species of plants that live in salty environments store salt in their roots. As a result, water osmosis occurs in the root from the surrounding soil.
Tonicity
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Related Experiment Video

Updated: Jan 13, 2026

Forced Flowering in Mandarin Trees under Phytotron Conditions
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Citrus Genotype Modulates Rhizosphere Microbiome Structure and Function Under Drought Stress.

Yanqi Teng1, Can Yin2, Fuyin Xu1

  • 1School of Agriculture and Forestry Science and Technology, Chongqing Three Gorges Vocational College, Chongqing 404100, China.

Plants (Basel, Switzerland)
|January 10, 2026
PubMed
Summary

Drought-tolerant citrus recruits beneficial microbes for resilience. This study reveals how plant-specific microbial communities enhance adaptation to drought stress, crucial for sustainable agriculture.

Keywords:
citrusdroughtphysiological characteristicsrhizosphere microorganismssoil indicators

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Area of Science:

  • Plant Science
  • Microbiology
  • Soil Science

Background:

  • Drought stress negatively impacts citrus growth and alters soil microbial communities.
  • The specific role of these microbes in plant drought tolerance is not well understood.

Purpose of the Study:

  • Investigate rhizosphere microbial structure, soil enzyme activities, and physicochemical properties in drought-tolerant (DR) and drought-sensitive (DS) citrus under drought.
  • Determine how microbial communities contribute to citrus drought tolerance.

Main Methods:

  • Utilized high-throughput sequencing to analyze rhizosphere microbial communities.
  • Assessed soil enzymatic activities (catalase, urease, acid phosphatase) and physicochemical properties.
  • Performed correlation analyses between microbial shifts and soil nutrient availability.

Main Results:

  • Drought significantly altered microbial composition, reducing bacterial diversity and enriching stress-tolerant/pathogenic bacteria and fungi.
  • The DR variety showed a more stable bacterial network with beneficial fungi (Penicillium, Trichoderma) and mycorrhizal fungi enrichment.
  • Soil catalase and urease decreased, while acid phosphatase increased significantly in DR under drought.

Conclusions:

  • Citrus drought tolerance is linked to a more resilient and cooperative rhizosphere microbiome.
  • Host-specific microbial recruitment plays a critical role in plant adaptation to drought stress.
  • Findings support the use of microbiome modulation for sustainable agriculture and crop resilience.