Regulation of Photosynthesis of C3 Plants in Response to Progressive Drought: Stomatal Conductance as a Reference Parameter

Clicks: 1
ID: 299331
2002
Free PDF
Article Quality & Performance Metrics
Overall Quality
Not rated
Combines reader engagement with the AI quality analysis. This article has not been analysed, so there is no overall score — reader engagement is measured and shown alongside.
AI Quality Assessment
Not analyzed
Readership in this journal

Ranked #117 of 190 articles by views in Annals of botany

Most read Least read

Bar heights use a square-root scale. Only the 120 most-read articles are drawn; the journal has 190 in total.

Mint this article as an NFT
Not yet minted

Create a permanent, verifiable on-chain record of this article on the Scimatic Network. The NFT is held in your Journament account, and you can withdraw it to your own wallet at any time.

5 SUSD one-off · no wallet required
Sign in to mint
Abstract
We review the photosynthetic responses to drought in ®eld-grown grapevines and other species.As in other plant species, the relationship between photosynthesis and leaf water potential and/or relative water content in ®eld-grown grapevines depends on conditions during plant growth and measurements.However, when light-saturated stomatal conductance was used as the reference parameter to re¯ect drought intensity, a common response pattern was observed that was much less dependent on the species and conditions.Many photosynthetic parameters (e.g.electron transport rate, carboxylation ef®ciency, intrinsic water-use ef®ciency, respiration rate in the light, etc.) were also more strongly correlated with stomatal conductance than with water status itself.Moreover, steady-state chlorophyll ¯uorescence also showed a high dependency on stomatal conductance.This is discussed in terms of an integrated down-regulation of the whole photosynthetic process by CO 2 availability in the mesophyll.A study with six Mediterranean shrubs revealed that, in spite of some marked interspeci®c differences, all followed the same pattern of dependence of photosynthetic processes on stomatal conductance, and this pattern was quite similar to that of grapevines.Further analysis of the available literature suggests that the above-mentioned pattern is general for C 3 plants.Even though the patterns described do not necessarily imply a cause and effect relationship, they can help our understanding of the apparent contradictions concerning stomatal vs. non-stomatal limitations to photosynthesis under drought.The signi®cance of these ®ndings for the improvement of water-use ef®ciency of crops is discussed.
Reference Key
openalex_W1513629489 Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors H. Medrano
Journal Annals of botany
Year 2002
DOI
10.1093/aob/mcf079
URL
https://doi.org/10.1093/aob/mcf079
Keywords Keywords not found

Citations

No citations found. To add a citation, contact the admin at info@scimatic.org

Comments

No comments yet. Be the first to comment on this article.