Abstract
Responses of stomata of clones of Populus candicans Ait. x P. berolinensis Dipp. and Populus deltoides Bartr. x P. caudina (Ten.) Bugala to two levels of light intensity and vapor pressure deficit were studied in controlled environments. Significant stomatal responses to light and vapor pressure deficit were observed. Interactive effects of low light intensity and high vapor pressure deficit elicited greater stomatal closure than was obtained under low light or high vapor pressure deficit alone, indicating adaptation for increased water use efficiency under conditions unfavorable for photosynthesis relative to transpiration. Adaxial stomata of both clones were more sensitive than abaxial stomata to changing vapor pressure deficit and light intensity. Stomatal response to vapor pressure deficit appeared to be independent of bulk leaf water status. Stomata of P. candicans x P. berolinensis were more sensitive than stomata of P. deltoides x P. caudina to a change in vapor pressure deficit and less sensitive to a change in light intensity. The sensitivity of stomata of P. candicans x P. berolinensis to vapor pressure deficit may be related to drought resistance in its parentage (P. berolinensis).
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 9
Claim · model-written summary
Populus stomata responded significantly to light intensity.
PopulusNot reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Significant stomatal responses to light and vapor pressure deficit were observed”
t0“Populus Clones”
Claim · model-written summary
Populus stomata responded significantly to vapor pressure deficit.
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Significant stomatal responses to light and vapor pressure deficit were observed”
t0“Populus Clones”
Claim · model-written summary
Low light and high vapor pressure deficit together caused greater stomatal closure than either alone.
- Treatment
- low light intensity and high vapor pressure deficite0
- Outcome
- stomatal closuree0
- Direction
- greatere0
- Comparator
- low light or high vapor pressure deficit alonee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Interactive effects of low light intensity and high vapor pressure deficit elicited greater stomatal closure than was obtained under low light or high vapor pressure deficit alone”
t0“Populus Clones”
Claim · model-written summary
The combined stomatal response indicates adaptation for higher water use efficiency under unfavorable photosynthesis-to-transpiration conditions.
- Outcome
- increased water use efficiencye0
- Qualifier
- conditions unfavorable for photosynthesis relative to transpiratione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“indicating adaptation for increased water use efficiency under conditions unfavorable for photosynthesis relative to transpiration”
t0“Populus Clones”
Claim · model-written summary
Adaxial stomata of both Populus clones were more sensitive than abaxial stomata to changing vapor pressure deficit and light intensity.
- Organ / stage
- Adaxial stomatae0
- Outcome
- sensitivee0
- Direction
- more sensitivee0
- Comparator
- abaxial stomatae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Adaxial stomata of both clones were more sensitive than abaxial stomata to changing vapor pressure deficit and light intensity”
t0“Populus Clones”
Claim · model-written summary
Populus stomatal response to vapor pressure deficit appeared independent of bulk leaf water status.
- Organ / stage
- leafe0
- Outcome
- Stomatal response to vapor pressure deficite0
- Qualifier
- independent of bulk leaf water statuse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Stomatal response to vapor pressure deficit appeared to be independent of bulk leaf water status”
t0“Populus Clones”
Claim · model-written summary
Stomata of P. candicans x P. berolinensis were more sensitive to vapor pressure deficit than those of P. deltoides x P. caudina.
- Taxon
- P. candicans x P. berolinensis
Populus candicanse0 - Material
- P. candicans x P. berolinensise0
- Outcome
- sensitivee0
- Direction
- more sensitivee0
- Comparator
- P. deltoides x P. caudinae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Stomata of P. candicans x P. berolinensis were more sensitive than stomata of P. deltoides x P. caudina to a change in vapor pressure deficit”
Claim · model-written summary
Stomata of P. candicans x P. berolinensis were less sensitive to light change than those of P. deltoides x P. caudina.
- Taxon
- P. candicans x P. berolinensisPopulus candicanse0
- Material
- P. candicans x P. berolinensise0
- Outcome
- sensitive to a change in light intensitye0
- Direction
- less sensitivee0
- Comparator
- P. deltoides x P. caudinae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Stomata of P. candicans x P. berolinensis were more sensitive than stomata of P. deltoides x P. caudina to a change in vapor pressure deficit and less sensitive to a change in light intensity”
Claim · model-written summary
Sensitivity of P. candicans x P. berolinensis stomata to vapor pressure deficit may relate to drought resistance in P. berolinensis parentage.
- Taxon
- P. candicans x P. berolinensisPopulus candicanse0
- Material
- P. berolinensise0
- Outcome
- sensitivity of stomatae0
- Qualifier
- may be related to drought resistancee0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The sensitivity of stomata of P. candicans x P. berolinensis to vapor pressure deficit may be related to drought resistance in its parentage (P. berolinensis)”