Abstract
Abstract Mineral nutrient absorption by 1‐cm root tips of Sorghum bicolor (L.) Moench. cv GP‐10, SC283, SC574, and/or Funk GS22DR from a 1‐hr exposure to Hoagland and Arnon complete mineral nutrient solution in the presence of diltiazem (0,10 mM), nifedipine (0,10 mM), or SITS (0, 1 mM) was evaluated using inductively coupled plasma emission photometry (ICP). Calcium (Ca2+) ‐ channel blockers (i.e. ‐ diltiazem, nifedipine, and verapamil) and PCMBS induced significantly decreased quantities of Ca2+ in root tips but the anion channel blocker, SITS, did not induce any response in Ca2+ uptake. Responses of phosphorus (P), zinc (Zn), boron (B), manganese (Mn), iron (Fe), magnesium (Mg), and copper (Cu) to all of the ion uptake modifiers were highly variable between the cultivars with increased, decreased, or no influence on ion uptake. As yet unrecognized multiple mechanisms of ion uptake through the root plasma membrane are necessary to explain the date.
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Claims 6
Claim · model-written summary
Calcium channel blockers and PCMBS significantly reduced calcium quantities in sorghum root tips.
- Organ / stage
- root tipse0
- Treatment
- Calcium (Ca2+) ‐ channel blockerse0
- Outcome
- quantities of Ca2+ in root tipse0
- Direction
- decreasede0
SorghumNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“sorghum root tips”
e0“Calcium (Ca2+) ‐ channel blockers (i.e. ‐ diltiazem, nifedipine, and verapamil) and PCMBS induced significantly decreased quantities of Ca2+ in root tips”
Claim · model-written summary
SITS did not change calcium uptake in sorghum root tips.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“sorghum root tips”
e0“the anion channel blocker, SITS, did not induce any response in Ca2+ uptake”
Claim · model-written summary
Responses of phosphorus, zinc and boron uptake to modifiers varied among sorghum cultivars, including increases, decreases and no influence.
- Treatment
- ion uptake modifierse0
- Outcome
- phosphorus (P), zinc (Zn), boron (B)e0
- Direction
- increased, decreased, or no influencee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“sorghum root tips”
e0“Responses of phosphorus (P), zinc (Zn), boron (B), manganese (Mn), iron (Fe), magnesium (Mg), and copper (Cu) to all of the ion uptake modifiers were highly variable between the cultivars with increased, decreased, or no influence on ion uptake.”
Claim · model-written summary
Responses of manganese, iron and magnesium uptake to modifiers varied among sorghum cultivars, including increases, decreases and no influence.
- Treatment
- ion uptake modifierse0
- Outcome
- manganese (Mn), iron (Fe), magnesium (Mg)e0
- Direction
- increased, decreased, or no influencee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“sorghum root tips”
e0“Responses of phosphorus (P), zinc (Zn), boron (B), manganese (Mn), iron (Fe), magnesium (Mg), and copper (Cu) to all of the ion uptake modifiers were highly variable between the cultivars with increased, decreased, or no influence on ion uptake.”
Claim · model-written summary
Copper uptake response to modifiers varied among sorghum cultivars, including increases, decreases and no influence.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“sorghum root tips”
e0“copper (Cu) to all of the ion uptake modifiers were highly variable between the cultivars with increased, decreased, or no influence on ion uptake.”
Claim · model-written summary
The variable uptake responses suggest multiple mechanisms of ion transport through the root plasma membrane.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“sorghum root tips”
e0“As yet unrecognized multiple mechanisms of ion uptake through the root plasma membrane are necessary to explain the date.”
The same questions in other papers
calcium atom · nutrient: content · SorghumPositive and negative results
2 papers in the same direction as this paper · 1 in the opposite direction
- positive
- negative
- 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.