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Related Concept Videos

Adaptations that Reduce Water Loss01:57

Adaptations that Reduce Water Loss

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.
Regulation of Transpiration by Stomata02:04

Regulation of Transpiration by Stomata

During photosynthesis, plants acquire the necessary carbon dioxide and release the produced oxygen back into the atmosphere. Openings in the epidermis of plant leaves is the site of this exchange of gasses. A single opening is called a stoma—derived from the Greek word for “mouth.” Stomata open and close in response to a variety of environmental cues.
Responses to Drought and Flooding02:41

Responses to Drought and Flooding

Water plays a significant role in the life cycle of plants. However, insufficient or excess of water can be detrimental and pose a serious threat to plants.
Responses to Heat and Cold Stress02:45

Responses to Heat and Cold Stress

Every organism has an optimum temperature range within which healthy growth and physiological functioning can occur. At the ends of this range, there will be a minimum and maximum temperature that interrupt biological processes.
Responses to Salt Stress02:02

Responses to Salt Stress

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.
Transcription01:10

Transcription

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...

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Related Experiment Video

Updated: Jul 4, 2026

Semi-High Throughput Screening for Potential Drought-tolerance in Lettuce (Lactuca sativa) Germplasm Collections
06:35

Semi-High Throughput Screening for Potential Drought-tolerance in Lettuce (Lactuca sativa) Germplasm Collections

Published on: April 17, 2015

Nutrient availability moderates transpiration in Ehrharta calycina.

Michael D Cramer1,2, Vera Hoffmann1, G Anthony Verboom1

  • 1Department of Botany, University of Cape Town, Private Bag X1, Rondebosch 7701, South Africa.

The New Phytologist
|June 10, 2008
PubMed
Summary
This summary is machine-generated.

Plants can regulate water transpiration to enhance nutrient uptake when facing limitations. This study shows nutrient-constrained plants transpired faster, improving nutrient flow to roots.

More Related Videos

Measurement of Leaf Hydraulic Conductance and Stomatal Conductance and Their Responses to Irradiance and Dehydration Using the Evaporative Flux Method (EFM)
12:11

Measurement of Leaf Hydraulic Conductance and Stomatal Conductance and Their Responses to Irradiance and Dehydration Using the Evaporative Flux Method (EFM)

Published on: December 31, 2012

Related Experiment Videos

Last Updated: Jul 4, 2026

Semi-High Throughput Screening for Potential Drought-tolerance in Lettuce (Lactuca sativa) Germplasm Collections
06:35

Semi-High Throughput Screening for Potential Drought-tolerance in Lettuce (Lactuca sativa) Germplasm Collections

Published on: April 17, 2015

Measurement of Leaf Hydraulic Conductance and Stomatal Conductance and Their Responses to Irradiance and Dehydration Using the Evaporative Flux Method (EFM)
12:11

Measurement of Leaf Hydraulic Conductance and Stomatal Conductance and Their Responses to Irradiance and Dehydration Using the Evaporative Flux Method (EFM)

Published on: December 31, 2012

Area of Science:

  • Plant physiology
  • Soil science
  • Nutrient cycling

Background:

  • Transpiration facilitates nutrient transport to plant roots via mass-flow.
  • The regulation of transpiration by plant nutrient status is not fully understood.

Purpose of the Study:

  • To investigate if nutrient status can regulate transpiration in Ehrharta calycina.
  • To determine the impact of nutrient availability on transpiration-driven mass-flow.

Main Methods:

  • Ehrharta calycina seeds were grown in sand with nutrients supplied via direct interception or diffusion/mass-flow.
  • Nutrient access was controlled using a 40-microm mesh to differentiate between interception and mass-flow pathways.
  • Measurements included plant size, transpiration rates, photosynthesis (A/E), and tissue nutrient concentrations (P, Ca, Na, N, K).

Main Results:

  • Nutrient-limited 'mass-flow' plants were smaller but transpired 60% faster than 'interception' plants.
  • Photosynthesis relative to transpiration (A/E) was 90% higher in mass-flow plants.
  • Mass-flow plants showed 40% higher tissue P, Ca, and Na concentrations, while N and K were similar between treatments.

Conclusions:

  • Plants can adjust transpiration rates in response to nutrient limitations, enhancing nutrient mass-flow to roots.
  • Transpiration appears to be regulated by nutrient availability, potentially nitrogen, to maintain tissue concentrations.
  • This suggests plants actively manage water transport to optimize nutrient acquisition under stress.