Abstract
Chlorophyll (Chl) and carotenoid accumulations are markedly reduced in detached wheat leaves after 20-hr exposure to light when subjected to mild (-7 bar) osmotic stress prior to illumination. The treatment of N6-benzyladenine (BA) in combination with gibberellic acid (GA) stimulated the recovery of plastid pigment accumulations in mildy stressed detached leaves. The combination treatment of BA plus IAA increased pigment accumulations only to the level stimulated by BA treatment alone. Mild water deficits increased the Chl a/b ratio and reduced the Chl/carotenoid ratio in wheat sections. Growth promoting hormones generally lowered the Chl a/b ratio and increased the Chl/carotenoid ratio in mildly stressed detached leaves. Abscisic acid (ABA) reduced plastid pigment concentrations in greening tissue and increased the Chl a/b ratio while decreasing the Chl/carotenoid ratio. In detached leaves stressed to -14 bars, BA in combination with GA stimulated only partial recovery of the plastid pigment accumulations and improved slightly the Chl a/b and Chl/carotenoid ratios.
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Claims 12
Claim · model-written summary
Mild osmotic stress reduced chlorophyll and carotenoid accumulation.
- Taxon
- wheat
Triticum aestivume0 - Treatment
- mild (-7 bar) osmotic stresse0
- Outcome
- Chlorophyll (Chl) and carotenoid accumulationse0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Chlorophyll (Chl) and carotenoid accumulations are markedly reduced in detached wheat leaves after 20-hr exposure to light when subjected to mild (-7 bar) osmotic stress prior to illumination”
Claim · model-written summary
BA with GA stimulated pigment recovery under mild stress.
- Taxon
- WheatTriticum aestivumt0
- Treatment
- N6-benzyladenine (BA) in combination with gibberellic acid (GA)e0
- Outcome
- plastid pigment accumulationse0
- Direction
- stimulatede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“N6-benzyladenine (BA) in combination with gibberellic acid (GA) stimulated the recovery of plastid pigment accumulations in mildy stressed detached leaves”
t0“Wheat Leaf Sections”
Claim · model-written summary
BA plus IAA increased pigments only to the BA-alone level.
- Taxon
- WheatTriticum aestivumt0
- Treatment
- BA plus IAAe0
- Outcome
- pigment accumulationse0
- Direction
- increasede0
- Comparator
- BA treatment alonee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“BA plus IAA increased pigment accumulations only to the level stimulated by BA treatment alone”
t0“Wheat Leaf Sections”
Claim · model-written summary
Mild water deficits increased the chlorophyll a/b ratio.
- Taxon
- WheatTriticum aestivumt0
- Treatment
- Mild water deficitse0
- Outcome
- Chl a/b ratioe0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Mild water deficits increased the Chl a/b ratio”
t0“Wheat Leaf Sections”
Claim · model-written summary
Mild water deficits reduced the chlorophyll/carotenoid ratio.
- Taxon
- wheatTriticum aestivume0
- Treatment
- Mild water deficitst1
- Outcome
- Chl/carotenoid ratioe0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“reduced the Chl/carotenoid ratio in wheat sections”
t1“Mild water deficits increased the Chl a/b ratio and reduced the Chl/carotenoid ratio in wheat sections. Growth promoting hormones generally lowered the Chl a/b ratio and increased the Chl/carotenoid ratio in mildly stressed detached leaves. Abscisic acid (ABA) reduced plastid pigment concentrations in greening tissue and increased the Chl a/b ratio while decreasing the Chl/carotenoid ratio. In detached leaves stressed to -14 bars, BA in combination with GA stimulated only partial recovery of the plastid pigment accumulations and improved slightly the Chl a/b and Chl/carotenoid ratios.”
Claim · model-written summary
Growth promoting hormones lowered the chlorophyll a/b ratio.
- Taxon
- WheatTriticum aestivumt0
- Treatment
- Growth promoting hormonese0
- Outcome
- Chl a/b ratioe0
- Direction
- lowerede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Growth promoting hormones generally lowered the Chl a/b ratio”
t0“Wheat Leaf Sections”
Claim · model-written summary
Growth promoting hormones increased the chlorophyll/carotenoid ratio.
- Taxon
- WheatTriticum aestivumt0
- Treatment
- Growth promoting hormonest1
- Outcome
- Chl/carotenoid ratioe0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“increased the Chl/carotenoid ratio in mildly stressed detached leaves”
t0“Wheat Leaf Sections”
t1“Mild water deficits increased the Chl a/b ratio and reduced the Chl/carotenoid ratio in wheat sections. Growth promoting hormones generally lowered the Chl a/b ratio and increased the Chl/carotenoid ratio in mildly stressed detached leaves. Abscisic acid (ABA) reduced plastid pigment concentrations in greening tissue and increased the Chl a/b ratio while decreasing the Chl/carotenoid ratio. In detached leaves stressed to -14 bars, BA in combination with GA stimulated only partial recovery of the plastid pigment accumulations and improved slightly the Chl a/b and Chl/carotenoid ratios.”
Claim · model-written summary
ABA reduced plastid pigment concentrations.
- Taxon
- WheatTriticum aestivumt0
- Treatment
- Abscisic acid (ABA)e0
- Outcome
- plastid pigment concentrationse0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Abscisic acid (ABA) reduced plastid pigment concentrations in greening tissue”
t0“Wheat Leaf Sections”
Claim · model-written summary
ABA increased the chlorophyll a/b ratio.
- Taxon
- WheatTriticum aestivumt0
- Treatment
- Abscisic acid (ABA)t1
- Outcome
- Chl a/b ratioe0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“increased the Chl a/b ratio while decreasing the Chl/carotenoid ratio”
t0“Wheat Leaf Sections”
t1“Mild water deficits increased the Chl a/b ratio and reduced the Chl/carotenoid ratio in wheat sections. Growth promoting hormones generally lowered the Chl a/b ratio and increased the Chl/carotenoid ratio in mildly stressed detached leaves. Abscisic acid (ABA) reduced plastid pigment concentrations in greening tissue and increased the Chl a/b ratio while decreasing the Chl/carotenoid ratio. In detached leaves stressed to -14 bars, BA in combination with GA stimulated only partial recovery of the plastid pigment accumulations and improved slightly the Chl a/b and Chl/carotenoid ratios.”
Claim · model-written summary
ABA decreased the chlorophyll/carotenoid ratio.
- Taxon
- WheatTriticum aestivumt0
- Treatment
- Abscisic acid (ABA)t1
- Outcome
- Chl/carotenoid ratioe0
- Direction
- decreasinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“decreasing the Chl/carotenoid ratio”
t0“Wheat Leaf Sections”
t1“Mild water deficits increased the Chl a/b ratio and reduced the Chl/carotenoid ratio in wheat sections. Growth promoting hormones generally lowered the Chl a/b ratio and increased the Chl/carotenoid ratio in mildly stressed detached leaves. Abscisic acid (ABA) reduced plastid pigment concentrations in greening tissue and increased the Chl a/b ratio while decreasing the Chl/carotenoid ratio. In detached leaves stressed to -14 bars, BA in combination with GA stimulated only partial recovery of the plastid pigment accumulations and improved slightly the Chl a/b and Chl/carotenoid ratios.”
Claim · model-written summary
BA with GA partially recovered pigments at -14 bars.
- Taxon
- WheatTriticum aestivumt0
- Treatment
- BA in combination with GAe0
- Outcome
- plastid pigment accumulationse0
- Direction
- stimulatede0
- Qualifier
- -14 barst1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“BA in combination with GA stimulated only partial recovery of the plastid pigment accumulations”
t0“Wheat Leaf Sections”
t1“Mild water deficits increased the Chl a/b ratio and reduced the Chl/carotenoid ratio in wheat sections. Growth promoting hormones generally lowered the Chl a/b ratio and increased the Chl/carotenoid ratio in mildly stressed detached leaves. Abscisic acid (ABA) reduced plastid pigment concentrations in greening tissue and increased the Chl a/b ratio while decreasing the Chl/carotenoid ratio. In detached leaves stressed to -14 bars, BA in combination with GA stimulated only partial recovery of the plastid pigment accumulations and improved slightly the Chl a/b and Chl/carotenoid ratios.”
Claim · model-written summary
BA with GA slightly improved both pigment ratios at -14 bars.
- Taxon
- WheatTriticum aestivumt0
- Treatment
- BA in combination with GAt1
- Outcome
- Chl a/b and Chl/carotenoid ratiose0
- Direction
- improvede0
- Qualifier
- -14 barst1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“improved slightly the Chl a/b and Chl/carotenoid ratios”
t0“Wheat Leaf Sections”
t1“Mild water deficits increased the Chl a/b ratio and reduced the Chl/carotenoid ratio in wheat sections. Growth promoting hormones generally lowered the Chl a/b ratio and increased the Chl/carotenoid ratio in mildly stressed detached leaves. Abscisic acid (ABA) reduced plastid pigment concentrations in greening tissue and increased the Chl a/b ratio while decreasing the Chl/carotenoid ratio. In detached leaves stressed to -14 bars, BA in combination with GA stimulated only partial recovery of the plastid pigment accumulations and improved slightly the Chl a/b and Chl/carotenoid ratios.”
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