Loading…
SPL36 Encodes a Receptor-like Protein Kinase that Regulates Programmed Cell Death and Defense Responses in Rice
Lesion mimic mutants spontaneously produce disease spots in the absence of biotic or abiotic stresses. Analyzing lesion mimic mutants’ sheds light on the mechanisms underlying programmed cell death and defense-related responses in plants. Here, we isolated and characterized the rice ( Oryza sativa )...
Saved in:
Published in: | Rice (New York, N.Y.) N.Y.), 2021-04, Vol.14 (1), p.34-14, Article 34 |
---|---|
Main Authors: | , , , , , , , , , , , , |
Format: | Article |
Language: | English |
Subjects: | |
Citations: | Items that this one cites Items that cite this one |
Online Access: | Get full text |
Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
Summary: | Lesion mimic mutants spontaneously produce disease spots in the absence of biotic or abiotic stresses. Analyzing lesion mimic mutants’ sheds light on the mechanisms underlying programmed cell death and defense-related responses in plants. Here, we isolated and characterized the rice (
Oryza sativa
)
spotted leaf 36
(
spl36
) mutant, which was identified from an ethyl methanesulfonate-mutagenized
japonica
cultivar Yundao population.
spl36
displayed spontaneous cell death and enhanced resistance to rice bacterial pathogens. Gene expression analysis suggested that
spl36
functions in the disease response by upregulating the expression of defense-related genes. Physiological and biochemical experiments indicated that more cell death occurred in
spl36
than the wild type and that plant growth and development were affected in this mutant. We isolated
SPL36
by map-based cloning. A single base substitution was detected in
spl36
, which results in a cysteine-to-arginine substitution in
SPL36
.
SPL36
is predicted to encode a receptor-like protein kinase containing leucine-rich domains that may be involved in stress responses in rice.
spl36
was more sensitive to salt stress than the wild type, suggesting that
SPL36
also negatively regulates the salt-stress response. These findings suggest that
SPL36
regulates the disease resistance response in rice by affecting the expression of defense- and stress-related genes. |
---|---|
ISSN: | 1939-8425 1939-8433 1934-8037 |
DOI: | 10.1186/s12284-021-00475-y |