ArticleBMC plant biology2021
Genome-wide identification of PTI1 family in Setaria italica and salinity-responsive functional analysis of SiPTI1-5.
Article in BMC plant biology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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Who cites it
10 citing papers in PubMed, 20 citations in OpenAlex.
- Mechanisms of Salt and Drought Stress Responses in Foxtail Millet.Plants (Basel, Switzerland) · 2025Review
- Catalytically inactive subgroup VIII receptor-like cytoplasmic kinases regulate the immune-triggered oxidative burst in Arabidopsis thaliana.Journal of experimental botany · 2025Article
- Enhancing Resistance to Cercospora Leaf Spot in Mung BeanPlants (Basel, Switzerland) · 2024Article
- Genome-Wide Analysis of the Auxin/Indoleacetic Acid (International journal of molecular sciences · 2024Article
- Article
- Phenazine biosynthesis protein MoPhzF regulates appressorium formation and host infection through canonical metabolic and noncanonical signaling function in Magnaporthe oryzae.The New phytologist · 2024Article
- Genome-Wide Identification and Expression Analysis of WRKY Transcription Factors inPlants (Basel, Switzerland) · 2023Article
- Genome-Wide Identification and Expression Analysis of theInternational journal of molecular sciences · 2022Article
- Genome-Wide Identification of MAPK, MAPKK, and MAPKKK Gene Families inFrontiers in genetics · 2022Article
- Multi-omics intervention inFrontiers in plant science · 2022Review
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Authors and funding
10 authors at 7 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundPTI1 (Pto-interacting 1) protein kinase belongs to the receptor-like cytoplasmic kinase (RLCK) group of receptor-like protein kinases (RLK), but lack extracellular and transmembrane domains. PTI1 was first identified in tomato (Solanum lycopersicum) and named SlPTI1, which has been reported to interact with bacterial effector Pto, a serine/threonine protein kinase involved in plant resistance to bacterial disease. Briefly, the host PTI1 specifically recognizes and interacts with the bacterial effector AvrPto, which triggers hypersensitive cell death to inhibit the pathogen growth in the local infection site. Previous studies have demonstrated that PTI1 is associated with oxidative stress and hypersensitivity.
resultsWe identified 12 putative PTI1 genes from the genome of foxtail millet (Setaria italica) in this study. Gene replication analysis indicated that both segmental replication events played an important role in the expansion of PTI1 gene family in foxtail millet. The PTI1 family members of model plants, i.e. S. italica, Arabidopsis (Arabidopsis thaliana), rice (Oryza sativa), maize (Zea mays), S. lycopersicum, and soybean (Glycine max), were classified into six major categories according to the phylogenetic analysis, among which the PTI1 family members in foxtail millet showed higher degree of homology with those of rice and maize. The analysis of a complete set of SiPTI1 genes/proteins including classification, chromosomal location, orthologous relationships and duplication. The tissue expression characteristics revealed that SiPTI1 genes are mainly expressed in stems and leaves. Experimental qRT-PCR results demonstrated that 12 SiPTI1 genes were induced by multiple stresses. Subcellular localization visualized that all of foxtail millet SiPTI1s were localized to the plasma membrane. Additionally, heterologous expression of SiPTI1-5 in yeast and E. coli enhanced their tolerance to salt stress.
conclusionsOur results contribute to a more comprehensive understanding of the roles of PTI1 protein kinases and will be useful in prioritizing particular PTI1 for future functional validation studies in foxtail millet.
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