Abstract
We compared nodule initiation in lateral roots of Pisum sativum (L.) cv Sparkle and in a low-nodulating mutant E2 (sym 5). In Sparkle, about 25% of the infections terminated in the epidermis, a similar number stopped in the cortex, and 50% resulted in the formation of a nodule meristem or an emerged nodule. The mutant E2 (sym 5) was infected as often as was the parent, and it formed a normal infection thread. In the mutant, cell divisions rarely occurred in advance of the infection thread, and few nodule primordia were produced. Growing the mutant at a low root temperature or adding Ag(+) to the substrate increased the number of cell divisions and nodule primordia. We conclude that, in the E2 line, the infection process is arrested in the cortex, at the stage of initial cell divisions before the establishment of a nodule primordium.
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
In Sparkle, about 25% of infections ended in the epidermis.
- Taxon
- Pisum sativum
Lathyrus oleraceust0 - Material
- Sparklee0
- Outcome
- infections terminated in the epidermise0
- Value
- about 25%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In Sparkle, about 25% of the infections terminated in the epidermis”
t0“Pisum sativum L. cv Sparkle”
Claim · model-written summary
In Sparkle, a similar number of infections stopped in the cortex.
- Taxon
- Pisum sativumLathyrus oleraceust0
- Material
- Sparklet0
- Outcome
- stopped in the cortexe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“a similar number stopped in the cortex”
t0“Pisum sativum L. cv Sparkle”
Claim · model-written summary
In Sparkle, 50% of infections formed a meristem or emerged nodule.
- Taxon
- Pisum sativumLathyrus oleraceust0
- Material
- Sparklet0
- Outcome
- formation of a nodule meristem or an emerged nodulee0
- Value
- 50%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“50% resulted in the formation of a nodule meristem or an emerged nodule”
t0“Pisum sativum L. cv Sparkle”
Claim · model-written summary
E2 was infected as often as the parent.
- Taxon
- Pisum sativumLathyrus oleraceust0
- Material
- E2 (sym 5)e0
- Outcome
- infected as often as was the parente0
- Comparator
- parente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The mutant E2 (sym 5) was infected as often as was the parent”
t0“Pisum sativum L. cv Sparkle”
Claim · model-written summary
E2 formed normal infection threads.
- Taxon
- Pisum sativumLathyrus oleraceust0
- Material
- E2 (sym 5)t0
- Outcome
- normal infection threade0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“it formed a normal infection thread”
t0“Pisum sativum L. cv Sparkle and in Its Low-Nodulating Mutant E2 (sym 5)”
Claim · model-written summary
E2 rarely divided cells ahead of infection threads.
- Taxon
- Pisum sativumLathyrus oleraceust0
- Material
- E2 (sym 5)t0
- Outcome
- cell divisions rarely occurred in advance of the infection threade0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In the mutant, cell divisions rarely occurred in advance of the infection thread”
t0“Pisum sativum L. cv Sparkle and in Its Low-Nodulating Mutant E2 (sym 5)”
Claim · model-written summary
E2 produced few nodule primordia.
- Taxon
- Pisum sativumLathyrus oleraceust0
- Material
- E2 (sym 5)t0
- Outcome
- few nodule primordia were producede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“few nodule primordia were produced”
t0“Pisum sativum L. cv Sparkle and in Its Low-Nodulating Mutant E2 (sym 5)”
Claim · model-written summary
Low root temperature increased cell divisions and nodule primordia in E2.
- Taxon
- Pisum sativumLathyrus oleraceust0
- Material
- E2 (sym 5)t0
- Treatment
- a low root temperaturee0
- Outcome
- number of cell divisions and nodule primordiae0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Growing the mutant at a low root temperature or adding Ag(+) to the substrate increased the number of cell divisions and nodule primordia.”
t0“Pisum sativum L. cv Sparkle and in Its Low-Nodulating Mutant E2 (sym 5)”
Claim · model-written summary
Silver addition increased cell divisions and nodule primordia in E2.
- Taxon
- Pisum sativumLathyrus oleraceust0
- Material
- E2 (sym 5)t0
- Treatment
- adding Ag(+) to the substratee0
- Outcome
- number of cell divisions and nodule primordiae0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“adding Ag(+) to the substrate increased the number of cell divisions and nodule primordia”
t0“Pisum sativum L. cv Sparkle and in Its Low-Nodulating Mutant E2 (sym 5)”
Claim · model-written summary
Authors conclude E2 infection arrests in cortex before nodule primordium formation.
- Taxon
- Pisum sativumLathyrus oleraceust0
- Material
- E2e0
- Outcome
- infection process is arrested in the cortexe0
- Qualifier
- at the stage of initial cell divisions before the establishment of a nodule primordiume0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“in the E2 line, the infection process is arrested in the cortex, at the stage of initial cell divisions before the establishment of a nodule primordium.”
t0“Pisum sativum L. cv Sparkle”
The same questions in other papers
silver atom · symbiosis · Lathyrus oleraceus (pea)Results agree
2 papers in the same direction as this paper
- positive
- positive
growing medium · symbiosis · Lathyrus oleraceus (pea)Positive and negative results
1 paper in the same direction as this paper · 1 in the opposite direction
- negative
- positive
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.