Abstract
The effects of a short (30 min) heat shock (HS) on plants subsequently grown under a salinity stress (SS, 200 mM NaCl) for 10 d were investigated in barley (Hordeum vulgare L.) cv. Tokak 157/37. The maximum temperature for HS allowing plant survival was 45 °C. The root length was significantly decreased by SS, whereas HS alone did not affect root growth. Interestingly, HS stimulated root elongation under SS. An osmotic adjustment was promoted in leaves by SS. On the contrary, HS increased the osmotic potential in leaves in the absence of SS, and partly counteracted the effect of SS in the HS+SS treatment. Cu/Zn-SOD, HvAPX, HvCAT2, HSP17, HSP18, and HSP90 were transcribed in leaves of HS-treated plants, but not in control plants. The HSP70 was constitutively transcribed in both the SS and control plants, but after HS, a shorter amplicon was also observed. The genes coding antioxidants, Cu/Zn-SOD, HvCAT2 and HvAPX, were differentially influenced by SS or HS+SS in the roots and leaves. In the roots, the mRNA content of BAS1, HvDRF1, HvMT2, and HvNHX1 increased after the HS treatment. In a recovery experiment in which plants were grown to maturity after HS and HS+SS stress exposure, the plant height increased and the time to maturity was reduced in comparison with SS. Our results show that HS could stimulate plant growth and reduce some of the negative effects of SS, and that it affected the transcription of several stress-related genes.
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 14
Claim · model-written summary
The maximum survivable heat shock temperature for barley was 45 °C.
- Taxon
- barley
.jpg?width=60)
Hordeum vulgaret0 - Treatment
- HSe0
- Outcome
- plant survivale0
- Value
- 45 °Ce0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“The maximum temperature for HS allowing plant survival was 45 °C”
t0“barley”
Claim · model-written summary
Salinity significantly reduced barley root length.
- Taxon
- barleyHordeum vulgaret0
- Treatment
- SSe0
- Outcome
- root lengthe0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The root length was significantly decreased by SS, whereas HS alone did not affect root growth”
t0“barley”
Claim · model-written summary
Heat shock alone did not affect barley root growth.
- Taxon
- barleyHordeum vulgaret0
- Treatment
- HS alonee0
- Outcome
- root growthe0
- Direction
- did not affecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“HS alone did not affect root growth”
t0“barley”
Claim · model-written summary
Heat shock stimulated barley root elongation under salinity.
- Taxon
- barleyHordeum vulgaret0
- Treatment
- HSe0
- Outcome
- root elongatione0
- Direction
- stimulatede0
- Qualifier
- under SSe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“HS stimulated root elongation under SS”
t0“barley”
Claim · model-written summary
Salinity promoted osmotic adjustment in barley leaves.
- Taxon
- barleyHordeum vulgaret0
- Organ / stage
- leavese0
- Treatment
- SSe0
- Outcome
- osmotic adjustmente0
- Direction
- promotede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“An osmotic adjustment was promoted in leaves by SS”
t0“barley”
Claim · model-written summary
Heat shock increased leaf osmotic potential without salinity.
- Taxon
- barleyHordeum vulgaret0
- Organ / stage
- leavese0
- Treatment
- HSe0
- Outcome
- osmotic potentiale0
- Direction
- increasede0
- Comparator
- absence of SSe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“HS increased the osmotic potential in leaves in the absence of SS”
t0“barley”
Claim · model-written summary
Heat shock partly counteracted the salinity effect on leaf osmotic potential.
- Taxon
- barleyHordeum vulgaret0
- Treatment
- HS+SS treatmente0
- Outcome
- effect of SSe0
- Direction
- counteractede0
- Comparator
- SSe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“partly counteracted the effect of SS in the HS+SS treatment”
t0“barley”
Claim · model-written summary
Six antioxidant and heat shock genes were transcribed in leaves after heat shock but not in controls.
- Taxon
- barleyHordeum vulgaret0
- Organ / stage
- leavese0
- Treatment
- HS-treatede0
- Gene
- Cu/Zn-SOD, HvAPX, HvCAT2, HSP17, HSP18, and HSP90e0
- Outcome
- transcribede0
- Comparator
- control plantse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cu/Zn-SOD, HvAPX, HvCAT2, HSP17, HSP18, and HSP90 were transcribed in leaves of HS-treated plants, but not in control plants”
t0“barley”
Claim · model-written summary
HSP70 transcription was constitutive in both salinity-treated and control barley plants.
- Taxon
- barleyHordeum vulgaret0
- Treatment
- SSe0
- Gene
- HSP70e0
- Outcome
- constitutively transcribede0
- Comparator
- control plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The HSP70 was constitutively transcribed in both the SS and control plants”
t0“barley”
Claim · model-written summary
Heat shock produced a shorter HSP70 amplicon in barley.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The HSP70 was constitutively transcribed in both the SS and control plants, but after HS, a shorter amplicon was also observed”
t0“barley”
Claim · model-written summary
Salinity and combined heat shock plus salinity differentially influenced antioxidant gene transcription in roots and leaves.
- Taxon
- barleyHordeum vulgaret0
- Organ / stage
- roots and leavese0
- Treatment
- SS or HS+SSe0
- Gene
- Cu/Zn-SOD, HvCAT2 and HvAPXe0
- Outcome
- differentially influencede0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The genes coding antioxidants, Cu/Zn-SOD, HvCAT2 and HvAPX, were differentially influenced by SS or HS+SS in the roots and leaves”
t0“barley”
Claim · model-written summary
Heat shock increased root mRNA content of four named genes.
- Taxon
- barleyHordeum vulgaret0
- Organ / stage
- rootse0
- Treatment
- HS treatmente0
- Gene
- BAS1, HvDRF1, HvMT2, and HvNHX1e0
- Outcome
- mRNA contente0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In the roots, the mRNA content of BAS1, HvDRF1, HvMT2, and HvNHX1 increased after the HS treatment”
t0“barley”
Claim · model-written summary
After recovery, heat shocked barley plants were taller than salinity treated plants.
- Taxon
- barleyHordeum vulgaret0
- Treatment
- HS and HS+SS stress exposuree0
- Outcome
- plant heighte0
- Direction
- increasede0
- Comparator
- SSe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“plants were grown to maturity after HS and HS+SS stress exposure, the plant height increased and the time to maturity was reduced in comparison with SS”
t0“barley”
Claim · model-written summary
After recovery, heat shocked barley matured sooner than salinity treated plants.
- Taxon
- barleyHordeum vulgaret0
- Treatment
- HS and HS+SS stress exposuree0
- Outcome
- time to maturitye0
- Direction
- reducede0
- Comparator
- SSe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“plants were grown to maturity after HS and HS+SS stress exposure, the plant height increased and the time to maturity was reduced in comparison with SS”
t0“barley”
The same questions in other papers
heat · phenology · Hordeum vulgare (barley)Results differ
3 in the opposite direction
- negative
- negative
- negative
heat · growth · Hordeum vulgare (barley)Results differ
5 papers in the same direction as this paper · 20 in the opposite direction
- negative
- negative
- no effect
22 papers more in this group
See all 26 papers →heat · molecular: expression · Hordeum vulgare (barley)Positive and negative results
9 in the opposite direction
- no effect
- negative
- negative
6 papers more in this group
See all 10 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.