Abstract
Ultraviolet-B (UV-B) radiation is one of the most important abiotic stress factors that could influence plant growth, development and productivity. Spermidine (Spd) is an important plant growth regulator involved in a wide variety of physiological processes. The study was carried out to investigate the protective role of exogenous on alleviation of UV-B stress in Zea mays L. Our result showed that UV-B stress significantly decreased the growth parameters, total soluble sugars, aminoacid, proline content, superoxide dismutase (SOD), catalase (CAT), peroxidase activity (PD) and Malondialdehyde content (MDA) in both the seedlings, but the combination of Spd pretreatment and UV-B enhanced the vegetative growth characters such as shoot and root length, shoot and root fresh weights and dry weights, photosynthetic pigment, non photosynthetic pigment composition and total soluble protein, total soluble glucose, free amino acid, SOD, CAT, PD, MDA and NR activities. However, UV-B stress induced positive effects on growth characters and biochemical constituents. Therefore appropriate concentration of Spd could be used as a simple, practical and inexpensive method for modulating the effects of UV-B stress in plants.
Abstract from the paper’s OpenAlex record; open copy licensed cc-by. 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 11
Claim · model-written summary
UV-B stress significantly decreased growth parameters of maize seedlings.
Zea maysNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“UV-B stress significantly decreased the growth parameters”
t0“ZEA MAYS L”
Claim · model-written summary
UV-B stress significantly decreased total soluble sugars, amino acid and proline content in maize seedlings.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“UV-B stress significantly decreased the growth parameters, total soluble sugars, aminoacid, proline content”
t0“ZEA MAYS L”
Claim · model-written summary
UV-B stress significantly decreased SOD, CAT and peroxidase activity in maize seedlings.
- Treatment
- UV-B stresse1
- Outcome
- superoxide dismutase (SOD), catalase (CAT), peroxidase activity (PD)e1
- Direction
- decreasede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“UV-B stress significantly decreased the growth parameters, total soluble sugars, aminoacid, proline content, superoxide dismutase (SOD), catalase (CAT), peroxidase activity (PD)”
t0“ZEA MAYS L”
Claim · model-written summary
UV-B stress significantly decreased malondialdehyde content in maize seedlings.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“UV-B stress significantly decreased the growth parameters, total soluble sugars, aminoacid, proline content, superoxide dismutase (SOD), catalase (CAT), peroxidase activity (PD) and Malondialdehyde content (MDA)”
t0“ZEA MAYS L”
Claim · model-written summary
Spd pretreatment combined with UV-B enhanced vegetative growth characters (shoot and root length, fresh and dry weights) of maize.
- Treatment
- the combination of Spd pretreatment and UV-Be1
- Outcome
- vegetative growth characterse1
- Direction
- enhancede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“the combination of Spd pretreatment and UV-B enhanced the vegetative growth characters”
t0“ZEA MAYS L”
Claim · model-written summary
Spd pretreatment combined with UV-B enhanced photosynthetic pigment, non photosynthetic pigment composition and total soluble protein in maize.
- Treatment
- the combination of Spd pretreatment and UV-Be1
- Outcome
- photosynthetic pigment, non photosynthetic pigment composition and total soluble proteine2
- Direction
- enhancede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“the combination of Spd pretreatment and UV-B enhanced the vegetative growth characters”
t0“ZEA MAYS L”
e2“photosynthetic pigment, non photosynthetic pigment composition and total soluble protein”
Claim · model-written summary
Spd pretreatment combined with UV-B enhanced total soluble glucose and free amino acid in maize.
- Treatment
- the combination of Spd pretreatment and UV-Be1
- Outcome
- total soluble glucose, free amino acide2
- Direction
- enhancede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“the combination of Spd pretreatment and UV-B enhanced the vegetative growth characters”
t0“ZEA MAYS L”
e2“total soluble glucose, free amino acid”
Claim · model-written summary
Spd pretreatment combined with UV-B enhanced SOD, CAT and PD activities in maize.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“the combination of Spd pretreatment and UV-B enhanced the vegetative growth characters”
t0“ZEA MAYS L”
e2“SOD, CAT, PD”
Claim · model-written summary
Spd pretreatment combined with UV-B enhanced MDA and NR activities in maize.
- Treatment
- the combination of Spd pretreatment and UV-Be1
- Outcome
- MDA and NR activitiese2
- Direction
- enhancede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“the combination of Spd pretreatment and UV-B enhanced the vegetative growth characters”
t0“ZEA MAYS L”
e2“MDA and NR activities”
Claim · model-written summary
The abstract states that UV-B stress induced positive effects on growth characters and biochemical constituents.
- Treatment
- UV-B stresse1
- Outcome
- growth characters and biochemical constituentse1
- Direction
- positive effectse1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“UV-B stress induced positive effects on growth characters and biochemical constituents”
t0“ZEA MAYS L”
Claim · model-written summary
An appropriate concentration of Spd could be used as a simple, practical and inexpensive method to modulate the effects of UV-B stress in plants.
- Taxon
- plantsViridiplantaee1
- Outcome
- modulating the effects of UV-B stresse1
Verbatim
e1“appropriate concentration of Spd could be used as a simple, practical and inexpensive method for modulating the effects of UV-B stress in plants”
The same questions in other papers
spermidine · physiology: antioxidant enzymes · Zea mays (maize)Results differ
5 papers in the same direction as this paper
- positive
- positive
- positive
2 papers more in this group
See all 6 papers →spermidine · physiology: oxidative · Zea mays (maize)Results differ
7 papers in the same direction as this paper · 1 in the opposite direction
- no effect
- positive
- positive
5 papers more in this group
See all 9 papers →spermidine · physiology: photosynthesis · Zea mays (maize)Results agree
5 papers in the same direction as this paper
- positive
- positive
- positive
2 papers more in this group
See all 6 papers →spermidine · growth · Zea mays (maize)Results agree
8 papers in the same direction as this paper
- positive
- positive
- positive
5 papers more in this group
See all 9 papers →spermidine · molecular: metabolites · Zea mays (maize)Results agree
14 papers in the same direction as this paper
- positive
- positive
- positive
11 papers more in this group
See all 15 papers →uv · physiology: antioxidant enzymes · Zea mays (maize)Results differ
1 paper in the same direction as this paper · 1 in the opposite direction
- negative
- positive
uv · physiology: photosynthesis · Zea mays (maize)Results differ
3 papers in the same direction as this paper · 6 in the opposite direction
- no effect
- negative
- negative
6 papers more in this group
See all 10 papers →uv · physiology: oxidative · Zea mays (maize)Positive and negative results
2 papers in the same direction as this paper · 1 in the opposite direction
- negative
- positive
- positive
8 of 10 groups shown: named compounds and organisms first, then groups whose results differ (checked claim by claim), then those with positive and negative results, then the smaller groups.
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.