Abstract
The involvement of jasmonic acid (JA), different JA-related metabolites, salicylic acid (SA), indole-3-acetic acid (IAA) and abscisic acid (ABA) in the heat-induced cross-adaptation to chilling has been investigated in citrus fruit. The effects of heating ‘Fortune’ mandarins at 37 ºC, and storing them at a chilling temperature (2 ºC) after being exposed, or not, to a heat-conditioning treatment (3 d at 37 ºC) on the levels of these signalling molecules were examined. Jasmonate metabolism activation at 37 ºC was followed by that of SA, and then by a rise in IAA and a drop in ABA. Storage at 2 ºC transiently increased the contents of IAA, of the JA precursor, cis-(+)− 12-oxo-phytodienoic acid (OPDA), and of the JA-derivatives jasmonoyl-isoleucine (JAIle) and methyl jasmonate (MeJA), and decreased ABA in the non-conditioned fruit. The results also indicated that fruit were protected from developing chilling symptoms by virtue of the heat-conditioning treatment having higher JAIle levels than the non-conditioned fruit for very long cold storage periods, while the heat-induced rises in SA, OPDA and MeJA noted in the cold-stored fruit were transient.
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Claims 14
Claim · model-written summary
Heating at 37 ºC activated jasmonate metabolism before salicylic acid and subsequent IAA rise and ABA decline.
- Outcome
- Jasmonate metabolism activatione0
CitrusNot reportedSetting
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Jasmonate metabolism activation at 37 ºC was followed by that of SA, and then by a rise in IAA and a drop in ABA.”
t0“citrus fruit”
Claim · model-written summary
At 37 ºC, salicylic acid activation followed jasmonate metabolism activation.
- Outcome
- SAe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Jasmonate metabolism activation at 37 ºC was followed by that of SA”
t0“citrus fruit”
Claim · model-written summary
At 37 ºC, IAA rose after jasmonate and SA activation.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“then by a rise in IAA”
t0“citrus fruit”
Claim · model-written summary
At 37 ºC, ABA fell after jasmonate and SA activation.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“a drop in ABA”
t0“citrus fruit”
Claim · model-written summary
Cold storage transiently increased IAA in non-conditioned fruit.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Storage at 2 ºC transiently increased the contents of IAA, of the JA precursor, cis-(+)− 12-oxo-phytodienoic acid (OPDA), and of the JA-derivatives jasmonoyl-isoleucine (JAIle) and methyl jasmonate (MeJA), and decreased ABA in the non-conditioned fruit.”
t0“citrus fruit”
Claim · model-written summary
Cold storage transiently increased OPDA in non-conditioned fruit.
- Treatment
- Storage at 2 ºCe0
- Outcome
- cis-(+)− 12-oxo-phytodienoic acid (OPDA)e0
- Direction
- increasede0
- Qualifier
- transientlye0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Storage at 2 ºC transiently increased the contents of IAA, of the JA precursor, cis-(+)− 12-oxo-phytodienoic acid (OPDA), and of the JA-derivatives jasmonoyl-isoleucine (JAIle) and methyl jasmonate (MeJA), and decreased ABA in the non-conditioned fruit.”
t0“citrus fruit”
Claim · model-written summary
Cold storage transiently increased JAIle in non-conditioned fruit.
- Treatment
- Storage at 2 ºCe0
- Outcome
- jasmonoyl-isoleucine (JAIle)e0
- Direction
- increasede0
- Qualifier
- transientlye0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Storage at 2 ºC transiently increased the contents of IAA, of the JA precursor, cis-(+)− 12-oxo-phytodienoic acid (OPDA), and of the JA-derivatives jasmonoyl-isoleucine (JAIle) and methyl jasmonate (MeJA), and decreased ABA in the non-conditioned fruit.”
t0“citrus fruit”
Claim · model-written summary
Cold storage transiently increased MeJA in non-conditioned fruit.
- Treatment
- Storage at 2 ºCe0
- Outcome
- methyl jasmonate (MeJA)e0
- Direction
- increasede0
- Qualifier
- transientlye0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Storage at 2 ºC transiently increased the contents of IAA, of the JA precursor, cis-(+)− 12-oxo-phytodienoic acid (OPDA), and of the JA-derivatives jasmonoyl-isoleucine (JAIle) and methyl jasmonate (MeJA), and decreased ABA in the non-conditioned fruit.”
t0“citrus fruit”
Claim · model-written summary
Cold storage decreased ABA in non-conditioned fruit.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“decreased ABA in the non-conditioned fruit”
e1“Storage at 2 ºC transiently increased”
t0“citrus fruit”
Claim · model-written summary
Heat conditioning protected fruit from chilling symptoms.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“fruit were protected from developing chilling symptoms by virtue of the heat-conditioning treatment”
t0“citrus fruit”
Claim · model-written summary
For very long cold storage, heat-conditioned fruit had higher JAIle than non-conditioned fruit.
- Treatment
- heat-conditioning treatmente0
- Outcome
- JAIle levelse0
- Direction
- highere0
- Qualifier
- very long cold storage periodse0
- Comparator
- non-conditioned fruite0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“heat-conditioning treatment having higher JAIle levels than the non-conditioned fruit for very long cold storage periods”
t0“citrus fruit”
Claim · model-written summary
Heat-induced SA rises in cold-stored fruit were transient.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the heat-induced rises in SA, OPDA and MeJA noted in the cold-stored fruit were transient”
t0“citrus fruit”
Claim · model-written summary
Heat-induced OPDA rises in cold-stored fruit were transient.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the heat-induced rises in SA, OPDA and MeJA noted in the cold-stored fruit were transient”
t0“citrus fruit”
Claim · model-written summary
Heat-induced MeJA rises in cold-stored fruit were transient.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the heat-induced rises in SA, OPDA and MeJA noted in the cold-stored fruit were transient”
t0“citrus fruit”
The same questions in other papers
heat · disease · CitrusPositive and negative results
5 papers in the same direction as this paper · 1 in the opposite direction
- no effect
- positive
- positive
3 papers more in this group
See all 7 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.