Abstract
Long-distance electrical signals (ESs) are an important mechanism of induction of systemic adaptive changes in plants under local action of stressors. ES-induced changes in photosynthesis and transpiration play a key role in these responses increasing plant tolerance to action of adverse factors. As a result, investigating ways of regulating electrical signaling and ES-induced physiological responses is a perspective problem of plant electrophysiology. The current work was devoted to the analysis of the influence of preliminary treatment (spraying) by exogenous 24-epibrassinolide (EBL) on burning-induced ESs and following photosynthetic and transpiratory responses in pea (Pisum sativum L.). It was shown that preliminary treatment by 1 µM EBL (1 day before the experiment) increased the amplitude of burning-induced ESs (variation potentials) in leaves and decreased the time of propagation of these signals from the stem to the leaf. The EBL treatment weakly influenced the magnitudes of burning-induced decreasing the photosynthetic linear electron flow and CO2 assimilation, but these changes were accelerated. Burning-induced changes in the cyclic electron flow around photosystem I were also affected by the EBL treatment. The influence of the EBL treatment on burning-induced changes in the stomatal water conductance was not observed. Our results show that preliminary treatment by EBL can be used for the modification of electrical signals and following photosynthetic responses in plants.
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Claims 7
Claim · model-written summary
Preliminary treatment with 1 µM EBL increased the amplitude of burning-induced electrical signals in pea leaves.
- Taxon
- Pisum sativum
Lathyrus oleraceust0 - Organ / stage
- leavese1
- Treatment
- preliminary treatment by 1 µM EBLe1
- Outcome
- amplitude of burning-induced ESse1
- Direction
- increasede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Pea (Pisum sativum L.)”
e1“It was shown that preliminary treatment by 1 µM EBL (1 day before the experiment) increased the amplitude of burning-induced ESs (variation potentials) in leaves and decreased the time of propagation of these signals from the stem to the leaf”
Claim · model-written summary
Preliminary treatment with 1 µM EBL decreased the time of propagation of burning-induced electrical signals from stem to leaf.
- Taxon
- Pisum sativumLathyrus oleraceust0
- Organ / stage
- from the stem to the leafe1
- Treatment
- preliminary treatment by 1 µM EBLe1
- Outcome
- time of propagation of these signalse1
- Direction
- decreasede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Pea (Pisum sativum L.)”
e1“It was shown that preliminary treatment by 1 µM EBL (1 day before the experiment) increased the amplitude of burning-induced ESs (variation potentials) in leaves and decreased the time of propagation of these signals from the stem to the leaf”
Claim · model-written summary
The EBL treatment weakly influenced the magnitudes of burning-induced decreases in photosynthetic linear electron flow and CO2 assimilation.
- Taxon
- Pisum sativumLathyrus oleraceust0
- Treatment
- The EBL treatmente2
- Outcome
- magnitudes of burning-induced decreasing the photosynthetic linear electron flow and CO2 assimilatione2
- Qualifier
- weakly influencede2
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Pea (Pisum sativum L.)”
e2“The EBL treatment weakly influenced the magnitudes of burning-induced decreasing the photosynthetic linear electron flow and CO2 assimilation, but these changes were accelerated”
Claim · model-written summary
Burning-induced decreases in photosynthetic linear electron flow and CO2 assimilation were accelerated by the EBL treatment.
- Taxon
- Pisum sativumLathyrus oleraceust0
- Treatment
- The EBL treatmente2
- Outcome
- burning-induced decreasing the photosynthetic linear electron flow and CO2 assimilatione2
- Direction
- acceleratede2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Pea (Pisum sativum L.)”
e2“The EBL treatment weakly influenced the magnitudes of burning-induced decreasing the photosynthetic linear electron flow and CO2 assimilation, but these changes were accelerated”
Claim · model-written summary
The EBL treatment affected burning-induced changes in the cyclic electron flow around photosystem I in pea.
- Taxon
- Pisum sativumLathyrus oleraceust0
- Treatment
- EBL treatmente3
- Outcome
- burning-induced changes in the cyclic electron flow around photosystem Ie3
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Pea (Pisum sativum L.)”
e3“Burning-induced changes in the cyclic electron flow around photosystem I were also affected by the EBL treatment”
Claim · model-written summary
The EBL treatment did not influence burning-induced changes in stomatal water conductance in pea.
- Taxon
- Pisum sativumLathyrus oleraceust0
- Treatment
- EBL treatmente4
- Outcome
- burning-induced changes in the stomatal water conductancee4
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Pea (Pisum sativum L.)”
e4“The influence of the EBL treatment on burning-induced changes in the stomatal water conductance was not observed”
Claim · model-written summary
Preliminary EBL treatment can be used to modify electrical signals and following photosynthetic responses in pea.
- Taxon
- Pisum sativumLathyrus oleraceust0
- Treatment
- preliminary treatment by EBLe5
- Outcome
- modification of electrical signals and following photosynthetic responsese5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Pea (Pisum sativum L.)”
e5“Our results show that preliminary treatment by EBL can be used for the modification of electrical signals and following photosynthetic responses in plants”
The same questions in other papers
24-epi-brassinolide · physiology: photosynthesis · Lathyrus oleraceus (pea)Positive and negative results
1 in the opposite direction
- 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.