Abstract
Abstract Pretreatment with the original auxin physiological analogues 1-[2-chloroethoxycarbonylmethyl]-4-naphthalenesulfonic acid calcium salt (TA-12) and 1-[2-dimethylaminoethoxicarbonylmethyl]naphthalene chlormethylate (TA-14) and subsequent UV-B irradiation (180 min at λ max 312 nm for 6.6 kJ·m −2 ) of pea plants ( Pisum sativum L.) was investigated to assess if foliar application of these compounds has ability to attenuate the negative effects caused by UV-B stress. UV-B treatment increased malondialdehyde (MDA) and proline levels as well as superoxide dismutase, catalase and guaiacol peroxidase activities, but decreased hydrogen peroxide, low-molecular thiols, total phenolics and total soluble protein contents. The pre-treatment with TA compounds decreased the oxidative stress provoked by UV-B radiation detected by lower level of MDA, increased the content of thiols and UV-absorbing compounds and had favourable effect on H 2 O 2 content and enzymatic activities. Exogenous application of auxin-like compounds on pea plantlets successfully counteracted UV-B induced oxidative stress via activation of ROS detoxifying enzymes and non-enzymatic antioxidants.
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Claims 7
Claim · model-written summary
UV-B increased malondialdehyde and proline levels in pea plants.
- Taxon
- Pisum sativum L.
Lathyrus oleraceuse1 - Treatment
- UV-B treatmente0
- Outcome
- malondialdehyde (MDA) and proline levelse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“UV-B treatment increased malondialdehyde (MDA) and proline levels as well as superoxide dismutase, catalase and guaiacol peroxidase activities, but decreased hydrogen peroxide, low-molecular thiols, total phenolics and total soluble protein contents.”
e1“of pea plants ( Pisum sativum L.)”
Claim · model-written summary
UV-B increased superoxide dismutase, catalase and guaiacol peroxidase activities.
- Taxon
- Pisum sativum L.Lathyrus oleraceuse1
- Treatment
- UV-B treatmente0
- Outcome
- superoxide dismutase, catalase and guaiacol peroxidase activitiese0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“UV-B treatment increased malondialdehyde (MDA) and proline levels as well as superoxide dismutase, catalase and guaiacol peroxidase activities, but decreased hydrogen peroxide, low-molecular thiols, total phenolics and total soluble protein contents.”
e1“of pea plants ( Pisum sativum L.)”
Claim · model-written summary
UV-B decreased hydrogen peroxide, low-molecular thiols and total phenolics.
- Taxon
- Pisum sativum L.Lathyrus oleraceuse1
- Treatment
- UV-B treatmente0
- Outcome
- hydrogen peroxide, low-molecular thiols, total phenolicse0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“UV-B treatment increased malondialdehyde (MDA) and proline levels as well as superoxide dismutase, catalase and guaiacol peroxidase activities, but decreased hydrogen peroxide, low-molecular thiols, total phenolics and total soluble protein contents.”
e1“of pea plants ( Pisum sativum L.)”
Claim · model-written summary
UV-B decreased total soluble protein content.
- Taxon
- Pisum sativum L.Lathyrus oleraceuse1
- Treatment
- UV-B treatmente0
- Outcome
- total soluble protein contentse0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“UV-B treatment increased malondialdehyde (MDA) and proline levels as well as superoxide dismutase, catalase and guaiacol peroxidase activities, but decreased hydrogen peroxide, low-molecular thiols, total phenolics and total soluble protein contents.”
e1“of pea plants ( Pisum sativum L.)”
Claim · model-written summary
TA compound pretreatment lowered MDA under UV-B exposure.
- Taxon
- Pisum sativum L.Lathyrus oleraceuse1
- Treatment
- pre-treatment with TA compoundse0
- Outcome
- level of MDAe0
- Direction
- lowere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The pre-treatment with TA compounds decreased the oxidative stress provoked by UV-B radiation detected by lower level of MDA, increased the content of thiols and UV-absorbing compounds and had favourable effect on H 2 O 2 content and enzymatic activities.”
e1“of pea plants ( Pisum sativum L.)”
Claim · model-written summary
TA compound pretreatment increased thiols and UV-absorbing compounds under UV-B exposure.
- Taxon
- Pisum sativum L.Lathyrus oleraceuse1
- Treatment
- pre-treatment with TA compoundse0
- Outcome
- content of thiols and UV-absorbing compoundse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The pre-treatment with TA compounds decreased the oxidative stress provoked by UV-B radiation detected by lower level of MDA, increased the content of thiols and UV-absorbing compounds and had favourable effect on H 2 O 2 content and enzymatic activities.”
e1“of pea plants ( Pisum sativum L.)”
Claim · model-written summary
TA compound pretreatment favorably affected hydrogen peroxide content and enzymatic activities under UV-B exposure.
- Taxon
- Pisum sativum L.Lathyrus oleraceuse1
- Treatment
- pre-treatment with TA compoundse0
- Outcome
- H 2 O 2 content and enzymatic activitiese0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The pre-treatment with TA compounds decreased the oxidative stress provoked by UV-B radiation detected by lower level of MDA, increased the content of thiols and UV-absorbing compounds and had favourable effect on H 2 O 2 content and enzymatic activities.”
e1“of pea plants ( Pisum sativum L.)”
The same questions in other papers
uv · physiology: osmolytes · Lathyrus oleraceus (pea)Results agree
3 papers in the same direction as this paper
- negative
- negative
- negative
uv · physiology: oxidative · Lathyrus oleraceus (pea)Results agree
7 papers in the same direction as this paper
- negative
- negative
- negative
4 papers more in this group
See all 8 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.