OsRCI-1 -Mediated GLVs Enhance Rice Resistance to Brown Planthoppers
Green leaf volatiles (GLVs) play pivotal roles in plant anti-herbivore defense. This study investigated whether the rice 13-lipoxygense gene is involved in GLV production and plant defense in rice. The overexpression of ( lines) in rice resulted in increased wound-induced levels of two prominent GLV...
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Published in | Plants (Basel) Vol. 13; no. 11; p. 1494 |
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Main Authors | , , , , , , |
Format | Journal Article |
Language | English |
Published |
Switzerland
MDPI AG
01.06.2024
MDPI |
Subjects | |
Online Access | Get full text |
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Summary: | Green leaf volatiles (GLVs) play pivotal roles in plant anti-herbivore defense. This study investigated whether the rice 13-lipoxygense gene
is involved in GLV production and plant defense in rice. The overexpression of
(
lines) in rice resulted in increased wound-induced levels of two prominent GLVs,
-3-hexen-1-ol and
-3-hexenal. In a previous study, we found that the overexpression of
reduced the colonization by the rice brown planthopper (BPH,
) but increased the attractiveness to the egg parasitoid
compared to wild-type (WT) plants. This study found that when
-3-hexen-1-ol, but not
-3-hexenal, was added to WT plants, it could change the BPH's colonization preference, i.e., more BPHs preferred to colonize the
lines. The exogenous application of
-3-hexen-1-ol or
-3-hexenal to BPH-infested WT plants could weaken or overturn the preference of
for
lines. However, field experiments revealed that only
-3-hexenal was attractive to the parasitoid and increased the parasitism rates of BPH eggs. These results indicate that
is involved in rice GLV production and therefore modulates both direct and indirect defense in rice. |
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Bibliography: | ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 These authors contributed equally to this work. |
ISSN: | 2223-7747 2223-7747 |
DOI: | 10.3390/plants13111494 |