Abstract
The interactive effects of light and drought on water relations and soluble sugars were addressed on Quercus suber L. seedlings grown under the combination of four irradiances and two soil water contents. Leaf water potentials at predawn and midday were lower for water stressed seedlings, independently of light environment. Osmotic potentials at full (Ψπ100) and zero turgor (Ψπ0) decreased with drought, under the four light treatments. However, the decline was greater with the development of water stress under the two treatments of higher light availability. The higher soluble sugar concentrations in seedlings grown under higher irradiances provoked a decrease of Ψπ0. The decrease in Ψπ100 and Ψπ0 in moderate stressed seedlings was accompanied by an increase in εmax. The lower ability for osmotic adjustment in seedlings grown under moderate water stress and low light environment suggested a lower efficiency in developing physiological mechanisms for drought tolerance in shade-grown seedlings. © INRA, EDP Sciences, 2005.
Abstract from the paper’s OpenAlex record; open copy licensed other-oa. 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 7
Claim · model-written summary
Water stress lowered predawn and midday leaf water potentials independently of light.
- Taxon
- Quercus suber L.
Quercus subert0 - Treatment
- water stressede0
- Outcome
- Leaf water potentials at predawn and middaye0
- Direction
- lowere0
- Qualifier
- independently of light environmente0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Leaf water potentials at predawn and midday were lower for water stressed seedlings, independently of light environment.”
t0“cork oak (Quercus suber L.) seedlings”
Claim · model-written summary
Drought lowered osmotic potentials at full and zero turgor under all four light treatments.
- Taxon
- Quercus suber L.Quercus subert0
- Treatment
- droughte0
- Outcome
- Osmotic potentials at full (Ψπ100) and zero turgor (Ψπ0)e0
- Direction
- decreasede0
- Qualifier
- under the four light treatmentse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Osmotic potentials at full (Ψπ100) and zero turgor (Ψπ0) decreased with drought, under the four light treatments.”
t0“cork oak (Quercus suber L.) seedlings”
Claim · model-written summary
The drought related decline in osmotic potential was greater at higher light availability.
- Taxon
- Quercus suber L.Quercus subert0
- Treatment
- higher light availabilitye0
- Outcome
- declinee0
- Direction
- greatere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“However, the decline was greater with the development of water stress under the two treatments of higher light availability.”
t0“cork oak (Quercus suber L.) seedlings”
Claim · model-written summary
Higher irradiance increased soluble sugar concentrations in seedlings.
- Taxon
- Quercus suber L.Quercus subert0
- Treatment
- higher irradiancese0
- Outcome
- soluble sugar concentrationse0
- Direction
- highere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The higher soluble sugar concentrations in seedlings grown under higher irradiances provoked a decrease of Ψπ0.”
t0“cork oak (Quercus suber L.) seedlings”
Claim · model-written summary
Higher soluble sugar concentrations lowered osmotic potential at zero turgor.
- Taxon
- Quercus suber L.Quercus subert0
- Outcome
- decrease of Ψπ0e0
- Direction
- decreasee0
- Qualifier
- higher soluble sugar concentrationse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The higher soluble sugar concentrations in seedlings grown under higher irradiances provoked a decrease of Ψπ0.”
t0“cork oak (Quercus suber L.) seedlings”
Claim · model-written summary
Moderate stress decreased osmotic potentials and increased εmax.
- Taxon
- Quercus suber L.Quercus subert0
- Treatment
- moderate stressede0
- Outcome
- εmaxe0
- Direction
- increasee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The decrease in Ψπ100 and Ψπ0 in moderate stressed seedlings was accompanied by an increase in εmax.”
t0“cork oak (Quercus suber L.) seedlings”
Claim · model-written summary
Moderately stressed shade grown seedlings had lower osmotic adjustment ability.
- Taxon
- Quercus suber L.Quercus subert0
- Outcome
- ability for osmotic adjustmente0
- Direction
- lowere0
- Qualifier
- moderate water stress and low light environmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The lower ability for osmotic adjustment in seedlings grown under moderate water stress and low light environment suggested a lower efficiency in developing physiological mechanisms for drought tolerance in shade-grown seedlings.”
t0“cork oak (Quercus suber L.) seedlings”
The same questions in other papers
drought · physiology: water · Quercus suber (cork oak)Results agree
1 paper in the same direction as this paper
- negative
Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.