Abstract
Cell wall synthesis was studied by determining the incorporation of [ 14 C]‐glucose into epidermal and cortical cell walls of etiolated Pisum sativum L. cv. Alaska stem segments. Walls were fractionated into the matrix and cellulose components, and incorporation into these components assessed in terms of the total uptake of label into that tissue. When segments were allowed to elongate, the stimulation of total glucose uptake by indole‐3‐acetic acid (IAA) and fusicoccin (FC) was greater than their stimulation of incorporation. IAA and FC thus did not stimulate precursor incorporation in elongating segments. When elongation was inhibited by calcium, however, IAA and FC significantly promoted wall synthesis in the cortex and vasular tissue (which shows almost no growth or acidification response to auxin). In these tissues incorporation into matrix and cellulose was promoted approximately equally. In the epidermis (thought to be the tissue responsive to auxin in the control of growth), FC promoted a significant increase in wall synthesis, although less than that in the cortex, while there was some evidence of a similar promotion by IAA. Both IAA and FC had a greater effect on incorporation into the matrix component of the wall than into cellulose. The results that FC caused a substantial promotion of cell wall synthesis which was not due solely to elongation, and that the inner non‐growth responsive cortical tissues can respond to IAA. Moreover, a comparison of the effects of IAA and FC on the different components of the wall suggests that the response in the epidermis differs from that in the other tissues.
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 13
Claim · model-written summary
indole‐3‐acetic acid (IAA) stimulated glucose uptake more than incorporation in elongating stem segments.
- Taxon
- Pisum sativum L. cv. Alaska
Lathyrus oleraceust0 - Treatment
- indole‐3‐acetic acid (IAA)e0
- Outcome
- total glucose uptakee0
- Direction
- greatere0
- Qualifier
- When segments were allowed to elongatee0
- Comparator
- incorporatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“When segments were allowed to elongate, the stimulation of total glucose uptake by indole‐3‐acetic acid (IAA) and fusicoccin (FC) was greater than their stimulation of incorporation.”
t0“Pisum sativum L. cv. Alaska stem segments”
Claim · model-written summary
fusicoccin (FC) stimulated glucose uptake more than incorporation in elongating stem segments.
- Taxon
- Pisum sativum L. cv. AlaskaLathyrus oleraceust0
- Treatment
- fusicoccin (FC)e0
- Outcome
- total glucose uptakee0
- Direction
- greatere0
- Qualifier
- When segments were allowed to elongatee0
- Comparator
- incorporatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“When segments were allowed to elongate, the stimulation of total glucose uptake by indole‐3‐acetic acid (IAA) and fusicoccin (FC) was greater than their stimulation of incorporation.”
t0“Pisum sativum L. cv. Alaska stem segments”
Claim · model-written summary
IAA did not stimulate precursor incorporation in elongating segments.
- Taxon
- Pisum sativum L. cv. AlaskaLathyrus oleraceust0
- Treatment
- IAAe0
- Outcome
- precursor incorporatione0
- Direction
- did not stimulatee0
- Qualifier
- elongating segmentse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“IAA and FC thus did not stimulate precursor incorporation in elongating segments.”
t0“Pisum sativum L. cv. Alaska stem segments”
Claim · model-written summary
FC did not stimulate precursor incorporation in elongating segments.
- Taxon
- Pisum sativum L. cv. AlaskaLathyrus oleraceust0
- Treatment
- FCe0
- Outcome
- precursor incorporatione0
- Direction
- did not stimulatee0
- Qualifier
- elongating segmentse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“IAA and FC thus did not stimulate precursor incorporation in elongating segments.”
t0“Pisum sativum L. cv. Alaska stem segments”
Claim · model-written summary
IAA promoted wall synthesis in cortex when calcium inhibited elongation.
- Taxon
- Pisum sativum L. cv. AlaskaLathyrus oleraceust0
- Organ / stage
- cortexe0
- Treatment
- IAAe0
- Outcome
- wall synthesise0
- Direction
- promotede0
- Qualifier
- elongation was inhibited by calciume0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“When elongation was inhibited by calcium, however, IAA and FC significantly promoted wall synthesis in the cortex and vasular tissue (which shows almost no growth or acidification response to auxin).”
t0“Pisum sativum L. cv. Alaska stem segments”
Claim · model-written summary
IAA promoted wall synthesis in vasular tissue when calcium inhibited elongation.
- Taxon
- Pisum sativum L. cv. AlaskaLathyrus oleraceust0
- Organ / stage
- vasular tissuee0
- Treatment
- IAAe0
- Outcome
- wall synthesise0
- Direction
- promotede0
- Qualifier
- elongation was inhibited by calciume0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“When elongation was inhibited by calcium, however, IAA and FC significantly promoted wall synthesis in the cortex and vasular tissue (which shows almost no growth or acidification response to auxin).”
t0“Pisum sativum L. cv. Alaska stem segments”
Claim · model-written summary
FC promoted wall synthesis in cortex when calcium inhibited elongation.
- Taxon
- Pisum sativum L. cv. AlaskaLathyrus oleraceust0
- Organ / stage
- cortexe0
- Treatment
- FCe0
- Outcome
- wall synthesise0
- Direction
- promotede0
- Qualifier
- elongation was inhibited by calciume0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“When elongation was inhibited by calcium, however, IAA and FC significantly promoted wall synthesis in the cortex and vasular tissue (which shows almost no growth or acidification response to auxin).”
t0“Pisum sativum L. cv. Alaska stem segments”
Claim · model-written summary
FC promoted wall synthesis in vasular tissue when calcium inhibited elongation.
- Taxon
- Pisum sativum L. cv. AlaskaLathyrus oleraceust0
- Organ / stage
- vasular tissuee0
- Treatment
- FCe0
- Outcome
- wall synthesise0
- Direction
- promotede0
- Qualifier
- elongation was inhibited by calciume0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“When elongation was inhibited by calcium, however, IAA and FC significantly promoted wall synthesis in the cortex and vasular tissue (which shows almost no growth or acidification response to auxin).”
t0“Pisum sativum L. cv. Alaska stem segments”
Claim · model-written summary
Matrix and cellulose incorporation were promoted approximately equally in those tissues.
- Taxon
- Pisum sativum L. cv. AlaskaLathyrus oleraceust0
- Outcome
- incorporation into matrix and cellulosee0
- Direction
- promoted approximately equallye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In these tissues incorporation into matrix and cellulose was promoted approximately equally.”
t0“Pisum sativum L. cv. Alaska stem segments”
Claim · model-written summary
FC significantly increased epidermal wall synthesis, less than in cortex.
- Taxon
- Pisum sativum L. cv. AlaskaLathyrus oleraceust0
- Organ / stage
- epidermise0
- Treatment
- FCe0
- Outcome
- wall synthesise0
- Direction
- increasee0
- Comparator
- cortexe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In the epidermis (thought to be the tissue responsive to auxin in the control of growth), FC promoted a significant increase in wall synthesis, although less than that in the cortex, while there was some evidence of a similar promotion by IAA.”
t0“Pisum sativum L. cv. Alaska stem segments”
Claim · model-written summary
IAA showed some evidence of increased epidermal wall synthesis.
- Taxon
- Pisum sativum L. cv. AlaskaLathyrus oleraceust0
- Organ / stage
- epidermise0
- Treatment
- IAAe0
- Outcome
- wall synthesise0
- Direction
- promotione0
- Qualifier
- some evidencee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In the epidermis (thought to be the tissue responsive to auxin in the control of growth), FC promoted a significant increase in wall synthesis, although less than that in the cortex, while there was some evidence of a similar promotion by IAA.”
t0“Pisum sativum L. cv. Alaska stem segments”
Claim · model-written summary
IAA affected matrix incorporation more than cellulose incorporation.
- Taxon
- Pisum sativum L. cv. AlaskaLathyrus oleraceust0
- Treatment
- IAAe0
- Outcome
- incorporation into the matrix component of the walle0
- Direction
- greatere0
- Comparator
- cellulosee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Both IAA and FC had a greater effect on incorporation into the matrix component of the wall than into cellulose.”
t0“Pisum sativum L. cv. Alaska stem segments”
Claim · model-written summary
FC affected matrix incorporation more than cellulose incorporation.
- Taxon
- Pisum sativum L. cv. AlaskaLathyrus oleraceust0
- Treatment
- FCe0
- Outcome
- incorporation into the matrix component of the walle0
- Direction
- greatere0
- Comparator
- cellulosee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Both IAA and FC had a greater effect on incorporation into the matrix component of the wall than into cellulose.”
t0“Pisum sativum L. cv. Alaska stem segments”
The same questions in other papers
indole-3-acetic acid · nutrient: content · Lathyrus oleraceus (pea)Positive and negative results
3 papers in the same direction as this paper · 1 in the opposite direction
- negative
- positive
- positive
1 paper more in this group
See all 5 papers →fusicoccin · nutrient: content · Lathyrus oleraceus (pea)Results agree
2 papers in the same direction as this paper
- positive
- 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.