Stomata and transpiration of droopy potatoes.

@article{Waggoner1966StomataAT,
  title={Stomata and transpiration of droopy potatoes.},
  author={Paul Waggoner and Norman Willison Simmonds},
  journal={Plant physiology},
  year={1966},
  volume={41 8},
  pages={
          1268-71
        }
}
A diploid potato (Solanum tuberosum) mutant called droopy wilts easily. Excised leaves of the mutant lost weight, and hence water, more rapidly and had many more open stomata than leaves of a normal sibling. Further, the stomata of abnormal plants remained open in wilted leaves. When the stomata of the abnormal mutant were closed by a chemical spray, its excised leaves lost water no more rapidly than normal. Thus, the wilting of the mutant must be caused by wide stomata. The wilting of the… 

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References

SHOWING 1-7 OF 7 REFERENCES

EFFECT OF CHEMICAL CONTROL OF STOMATA ON TRANSPIRATION OF INTACT PLANTS.

  • I. ZelitchP. Waggoner
  • Environmental Science, Medicine
    Proceedings of the National Academy of Sciences of the United States of America
  • 1962
In 9 out of 11 experiments, induced closure of stomata reduced transpiration relatively more than CO2 assimilation as predicted from diffusion theory, leading to experiments in transpiration control in whole plants grown in containers in the greenhouse.

Mutant expression in diploid potatoes

General botanical studies of diploid potato mutants as a preliminary to possible biochemical study; and two attempts to detect, by screening procedures, auxotrophic mutants.

Effect of Soil Moisture and Phenylmercuric Acetate upon Stomatal Aperture, Transpiration, and Photosynthesis.

In these experiments, it was demonstrated that the relations between both transpiration and photosynthesis and stomatal opening agreed with the equations relating diffusion of water vapor and CO2 to resistance calculated fromStomatal dimensions, and this method of transpiration control offered a promising tool for the study of soilwater-plant interrelations.

EFFECT OF CHEMICAL CONTROL OF STOMATA ON TRANSPIRATION AND PHOTOSYNTHESIS.

  • I. ZelitchP. Waggoner
  • Environmental Science
    Proceedings of the National Academy of Sciences of the United States of America
  • 1962
The water transpired from leaves and the CO2 fixed in them are assumed to pass mainly through the microscopic pores, the stomata, that provide a ready path for diffusion of gases between the

Linkage to the S-locus in diploid potatoes

THE cultivated diploid potatoes of the Andes have an oppositionalallele gametophytic type of incompatibility controlled by alleles at the S-locus; being outbreeders, they are frequently heterozygous

BIOCHEMICAL CONTROL OF STOMATAL OPENING IN LEAVES.

  • I. Zelitch
  • Environmental Science
    Proceedings of the National Academy of Sciences of the United States of America
  • 1961