Abstract
The effect of boron deficiency on symbiotic nitrogen fixation in pea (Pisum sativum) was examined. The absence of boron in the culture medium resulted in a decrease of the number of nodules and an alteration of nodule development leading to an inhibition of nitrogenase activity. Examination of boron-deficient nodules showed dramatic changes in cell walls and in both peribacteroid and infection thread membranes, suggesting a role for boron in the stability of these structures. These results indicate that boron is a requirement for normal nodule development and functionality.
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Claims 4
Claim · model-written summary
Absence of boron in the culture medium decreased the number of pea nodules
- Taxon
- pea (Pisum sativum)
Lathyrus oleraceuse0 - Organ / stage
- nodulese1
- Treatment
- absence of boron in the culture mediume1
- Outcome
- number of nodulese1
- Direction
- decreasee1
- Setting
- culture mediume1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The effect of boron deficiency on symbiotic nitrogen fixation in pea (Pisum sativum) was examined”
e1“The absence of boron in the culture medium resulted in a decrease of the number of nodules and an alteration of nodule development leading to an inhibition of nitrogenase activity”
Claim · model-written summary
Absence of boron in the culture medium inhibited nitrogenase activity in pea nodules
- Taxon
- pea (Pisum sativum)Lathyrus oleraceuse0
- Treatment
- absence of boron in the culture mediume1
- Outcome
- nitrogenase activitye1
- Direction
- inhibitione1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The effect of boron deficiency on symbiotic nitrogen fixation in pea (Pisum sativum) was examined”
e1“The absence of boron in the culture medium resulted in a decrease of the number of nodules and an alteration of nodule development leading to an inhibition of nitrogenase activity”
Claim · model-written summary
Boron-deficient pea nodules showed dramatic changes in cell walls and in peribacteroid and infection thread membranes
- Taxon
- pea (Pisum sativum)Lathyrus oleraceuse0
- Organ / stage
- boron-deficient nodulese2
- Outcome
- dramatic changes in cell walls and in both peribacteroid and infection thread membranese2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The effect of boron deficiency on symbiotic nitrogen fixation in pea (Pisum sativum) was examined”
e2“Examination of boron-deficient nodules showed dramatic changes in cell walls and in both peribacteroid and infection thread membranes, suggesting a role for boron in the stability of these structures”
Claim · model-written summary
Boron may play a role in the stability of nodule structures in pea
- Taxon
- pea (Pisum sativum)Lathyrus oleraceuse0
- Compound
- borone2
- Outcome
- stability of these structurese2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The effect of boron deficiency on symbiotic nitrogen fixation in pea (Pisum sativum) was examined”
e2“Examination of boron-deficient nodules showed dramatic changes in cell walls and in both peribacteroid and infection thread membranes, suggesting a role for boron in the stability of these structures”
The same questions in other papers
boron atom · symbiosis · Lathyrus oleraceus (pea)Results agree
3 papers in the same direction as this paper
This paper is about lacking the nutrient, so it counts the other way round here.
- positive
- positive
- positive
in vitro · physiology: enzyme activity · Lathyrus oleraceus (pea)Results agree
3 papers in the same direction as this paper
- no effect
- negative
- negative
in vitro · symbiosis · Lathyrus oleraceus (pea)Results agree
4 papers in the same direction as this paper
- negative
- negative
- negative
1 paper more in this group
See all 5 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.