Abstract
The effects of phosphate deficiency on the plant growth and acid phosphatase activity in two wheat cultivars (Triticum aestivum L. cv. ‘Bryza’ and ‘Opatka’) were studied. Pi content decreased significantly in the shoots and roots of all plants grown for one to three weeks in the nutrient medium without phosphate (−P). Phosphate starvation affected growth of both wheat cultivars in a similar way: significantly decreased shoot and root mass, especially after three weeks growth on −P medium, even up to 8–11% of control. However the ratio of root/shoot fresh weight of −P plants increased (2–3 times more than control). The shoot height of −P wheat plants decreased to about 50–60% of the control after two to three weeks of culture; less affected by Pi deficiency was root elongation—no significant changes were observed for both wheat cultivars during one to three weeks of culture. Phosphate deficiency increased the activity of extracellular and intracellular acid phosphatases in comparison to phosphate-sufficient plants. The increase of intracellular acid phosphatase activity in leaves and roots was generally more significant in ‘Bryza’ cultivar as compared to ‘Opatka’, especially after two to three weeks of growth on −P medium. The increase of root surface acid phosphatase activity was the highest for Pi-deficient wheat cv. ‘Bryza’, after three weeks of culture in the −P medium. Generally, the increase of activity of acid phosphatases secreted by the roots of −P wheat plants was higher than those of intracellular acid phosphatases. These results indicate an important role of acid phosphatases in the acclimation of both wheat cultivars to early Pi deficiency.
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 10
Claim · model-written summary
Phosphate deprivation significantly lowered phosphate content in wheat shoots and roots over one to three weeks.
- Taxon
- WHEAT
Triticum aestivumt0 - Organ / stage
- shoots and rootse0
- Treatment
- nutrient medium without phosphate (−P)e0
- Outcome
- Pi contente0
- Direction
- decreasede0
- Qualifier
- one to three weekse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Pi content decreased significantly in the shoots and roots of all plants grown for one to three weeks in the nutrient medium without phosphate (−P).”
t0“WHEAT”
Claim · model-written summary
Phosphate starvation significantly reduced shoot and root mass to 8–11% of control after three weeks.
- Taxon
- WHEATTriticum aestivumt0
- Treatment
- −P mediume0
- Outcome
- shoot and root masse0
- Direction
- decreasede0
- Value
- 8–11%e0
- Qualifier
- after three weeks growthe0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“significantly decreased shoot and root mass, especially after three weeks growth on −P medium, even up to 8–11% of control.”
t0“WHEAT”
Claim · model-written summary
Phosphate deprivation increased root to shoot fresh weight ratio two to threefold versus control.
- Taxon
- WHEATTriticum aestivumt0
- Treatment
- −Pe0
- Outcome
- ratio of root/shoot fresh weighte0
- Direction
- increasede0
- Value
- 2–3 timese0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the ratio of root/shoot fresh weight of −P plants increased (2–3 times more than control).”
t0“WHEAT”
Claim · model-written summary
Phosphate deficiency reduced wheat shoot height to 50–60% of control after two to three weeks.
- Taxon
- wheatTriticum aestivume0
- Treatment
- −Pe0
- Outcome
- shoot heighte0
- Direction
- decreasede0
- Value
- 50–60%e0
- Qualifier
- after two to three weeks of culturee0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The shoot height of −P wheat plants decreased to about 50–60% of the control after two to three weeks of culture”
Claim · model-written summary
Phosphate deficiency did not significantly alter root elongation in either cultivar during one to three weeks.
- Taxon
- wheatTriticum aestivume0
- Treatment
- Pi deficiencye0
- Outcome
- root elongatione0
- Direction
- no significant changese0
- Qualifier
- one to three weeks of culturee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“less affected by Pi deficiency was root elongation—no significant changes were observed for both wheat cultivars during one to three weeks of culture.”
t0“WHEAT”
Claim · model-written summary
Phosphate deficiency increased extracellular acid phosphatase activity relative to phosphate-sufficient plants.
- Taxon
- WHEATTriticum aestivumt0
- Treatment
- Phosphate deficiencye0
- Gene
- extracellular and intracellular acid phosphatasese0
- Outcome
- extracellulare0
- Direction
- increasede0
- Comparator
- phosphate-sufficient plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Phosphate deficiency increased the activity of extracellular and intracellular acid phosphatases in comparison to phosphate-sufficient plants.”
t0“WHEAT”
Claim · model-written summary
Phosphate deficiency increased intracellular acid phosphatase activity relative to phosphate-sufficient plants.
- Taxon
- WHEATTriticum aestivumt0
- Treatment
- Phosphate deficiencye0
- Gene
- extracellular and intracellular acid phosphatasese0
- Outcome
- intracellular acid phosphatasese0
- Direction
- increasede0
- Comparator
- phosphate-sufficient plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Phosphate deficiency increased the activity of extracellular and intracellular acid phosphatases in comparison to phosphate-sufficient plants.”
t0“WHEAT”
Claim · model-written summary
Intracellular phosphatase activity in leaves and roots increased more strongly in Bryza than Opatka.
- Taxon
- WHEATTriticum aestivumt0
- Material
- ‘Bryza’e0
- Outcome
- intracellular acid phosphatase activitye0
- Direction
- increaseinferrede0
- Qualifier
- two to three weeks of growth on −P mediume0
- Comparator
- ‘Opatka’e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The increase of intracellular acid phosphatase activity in leaves and roots was generally more significant in ‘Bryza’ cultivar as compared to ‘Opatka’, especially after two to three weeks of growth on −P medium.”
t0“WHEAT”
Claim · model-written summary
Root surface acid phosphatase activity increased most for phosphate deficient Bryza after three weeks.
- Taxon
- wheatTriticum aestivume0
- Material
- ‘Bryza’e0
- Outcome
- root surface acid phosphatase activitye0
- Direction
- higheste0
- Qualifier
- after three weeks of culture in the −P mediume0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The increase of root surface acid phosphatase activity was the highest for Pi-deficient wheat cv. ‘Bryza’, after three weeks of culture in the −P medium.”
Claim · model-written summary
Root secreted acid phosphatase activity rose more than intracellular activity under phosphate deficiency.
- Taxon
- wheatTriticum aestivume0
- Treatment
- −Pe0
- Outcome
- activity of acid phosphatases secreted by the rootse0
- Direction
- highere0
- Comparator
- intracellular acid phosphatasese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the increase of activity of acid phosphatases secreted by the roots of −P wheat plants was higher than those of intracellular acid phosphatases.”
The same questions in other papers
in vitro · molecular: metabolites · Triticum aestivum (wheat)Positive and negative results
3 papers in the same direction as this paper · 13 in the opposite direction
- positive
- positive
- positive
13 papers more in this group
See all 17 papers →phosphorus · molecular: metabolites · Triticum aestivum (wheat)Positive and negative results
34 papers in the same direction as this paper · 18 in the opposite direction
This paper is about lacking the nutrient, so it counts the other way round here.
- positive
- negative
- no effect
49 papers more in this group
See all 53 papers →in vitro · growth · Triticum aestivum (wheat)Positive and negative results
32 papers in the same direction as this paper · 73 in the opposite direction
- positive
- positive
- positive
102 papers more in this group
See all 106 papers →phosphorus · growth · Triticum aestivum (wheat)Positive and negative results
34 papers in the same direction as this paper · 158 in the opposite direction
This paper is about lacking the nutrient, so it counts the other way round here.
- positive
- positive
- positive
189 papers more in this group
See all 193 papers →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.