Honeydew-associated microbes elicit defense responses against brown planthopper in rice

Wari, David; Kabir, Alamgir; Mujiono, Kadis; Hojo, Yuko; Shinya, Tomonori; Tani, Akio; Nakatani, Hiroko; Gàlis, Ivan

doi:10.1093/jxb/erz041

Cited by 52 publications

(44 citation statements)

References 97 publications

(122 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Through transient expression of 64 BPH salivary proteins in plants, six proteins were shown to elicit defense responses. Finally, bacteria in BPH honeydew were recently shown to activate rice defenses response in rice, including the accumulation of phytoalexins and the release of volatile compounds to attract natural enemies of BPH (Wari et al 2019). Together, these studies revealed that a variety of salivary proteins evoke defense responses in plant cells.…”

Section: Insect Elicitors and Effectorsmentioning

confidence: 98%

Current understanding of the genomic, genetic, and molecular control of insect resistance in rice

Chen

Guo

et al. 2020

Mol Breeding

View full text Add to dashboard Cite

Rice (Oryza sativa) is both a vital source of food and a key model cereal for genomic research. Insect pests are major factors constraining rice production. Here, we provide an overview of recent progress in functional genomics research and the genetic improvements of insect resistance in rice. To date, many insect resistance genes have been identified in rice, and 14 such genes have been cloned via a map-based cloning approach. The proteins encoded by these genes perceive the effectors of insect and activate the defense pathways, including the expression of defense-related genes, including mitogen-activated protein kinase, plant hormone, and transcription factors; and defense mechanism against insects, including callose deposition, trypsin proteinase inhibitors (TryPIs), secondary metabolites, and green leaf volatiles (GLVs). These ongoing functional genomic studies provide insights into the molecular basis of rice-insect interactions and facilitate the development of novel insect-resistant rice varieties, improving long-term control of insect pests in this crucial crop.

show abstract

Section: Insect Elicitors and Effectorsmentioning

confidence: 98%

Current understanding of the genomic, genetic, and molecular control of insect resistance in rice

Chen

Guo

et al. 2020

Mol Breeding

View full text Add to dashboard Cite

show abstract

“…Considering more the association of this group of genes with human diseases, a related point to consider is that the CSP structure triggers plant immune responses when injected into the phloem, similarly to honeydew-associated microbes [77,78,79]. While CSP and/or honeydew microbes help release phytoalexins, jasmonic acid, salicylic acid and volatile organic compounds (VOCs) from the leaves, it would be interesting to see if the injection of CSP structures and/or the inoculation of specific bacteria such as A. baumannii, M./ S. caseolyticus, K. griseola and E. coli result in the activation of similar defense genes in the human tissue.…”

Section: Expression Of Chemosensory Protein (Csp) Structures In Pedicmentioning

confidence: 99%

Expression of Chemosensory Protein (CSP) Structures in Pediculus humanis corporis and Acinetobacter baumannii

Liu¹,

Yue²,

Rajashekar³

et al. 2019

SOJMID

View full text Add to dashboard Cite

We parsed the microbial genome database using Bombyx mori chemosensory proteins (BmorCSPs) as templates. We extracted eleven bacterial CSPs (B-CSPs) from various microorganisms such as Kitasatospora griseola, K. purpeofusca, K. CB01950, K. MBT66, Escherichia coli, Macrococcus caseolyticus and Acinetobacter baumannii, a known infectious prokaryotic symbiont of various insects, particularly the human body louse. We then parsed the body louse Pediculus humanis corporis genomic database for CSPs. We found six P. humanis corporis (Phum) CSPs all grouped in the same gene cluster. Sequence alignment, structure modeling and phylogenetic analysis of CSP proteins in bacteria and insects reveal duplication, conservation, gene loss, but also diversification and neofunctionalization that took place at a common stage in this ancestral gene family. Phylogenetic analysis of the amino acid sequences also reveals association of CSPs with other prokaryotic gene families, mainly enzymes and secondary metabolites transporters. Their ability to bind lipids and their proved existence and diversity in infectious bacterial prokaryote systems strongly argue for some important general functions in the cellular metabolism process.

show abstract

“…Aside from the symbiotes inside the gut of BPH, BPH may ingest various microbes from rice plants and then secrete these microbes as honeydew. Interestingly, BPH honeydew strongly elicited the defense response of rice against BPH . The microbes from BPH honeydew induced the production of volatile organic compounds that attract natural enemies of BPH as well as the accumulation of phytoalexins in rice .…”

Section: Elicitors Promote Rice Defenses Against Planthoppersmentioning

confidence: 99%

“…Interestingly, BPH honeydew strongly elicited the defense response of rice against BPH . The microbes from BPH honeydew induced the production of volatile organic compounds that attract natural enemies of BPH as well as the accumulation of phytoalexins in rice . Such honeydew‐associated elicitors might have great potential for application in the control of planthoppers.…”

Section: Elicitors Promote Rice Defenses Against Planthoppersmentioning

confidence: 99%

“…To recognize exogenous compounds as ‘non‐self’ (danger signal) and endogenous compounds as ‘self’ is the core mission of the rice defense system. Rice may be able to recognize planthopper‐derived molecules (‘non‐self’), such as BPH‐secreted mucin‐like protein and honeydew‐associated elicitors, and employ these exogenous compounds as elicitors to induce defense gene expression and trigger corresponding defense responses. In plant‐pathogen perception, some elicitor binding proteins in plants were presumed to be part of the plant recognition complex.…”

Section: Future Perspectivesmentioning

confidence: 99%

See 1 more Smart Citation

Current understanding of the molecular players involved in resistance to rice planthoppers

Yang

Zhang

2019

Pest Management Science

View full text Add to dashboard Cite

Rice planthoppers are the most widespread and destructive pest of rice. Planthopper control depends greatly on the understanding of molecular players involved in resistance to planthoppers. This paper summarizes the recent progress in the understanding of some molecular players involved in resistance to planthoppers and the mechanisms involved. Recent researches showed that host‐plant resistance is the most promising sustainable approach for controlling planthoppers. Planthopper‐resistant varieties with a host‐plant resistance gene have been released for rice products. Integrated planthopper management is a proposed strategy to prolong the durability of host‐plant resistance. Bacillus spp. and their gene products or insect pathogenic fungi have great potential for application in the biological control of planthoppers. Enhancement of the activity of the natural enemies of planthoppers would be more cost‐effective and environmentally friendly. Various molecular processes regulate rice–planthopper interactions. Rice encounters planthopper attacks via transcription factors, secondary metabolites, and signaling networks in which phytohormones have central roles. Maintenance of cell wall integrity and lignification act as physical barriers. Indirect defenses of rice are regulated via chemical elicitors, honeydew‐associated elicitor, amendment with silicon and biochar, and salivary protein of BPH as elicitor or effector. Further research directions on planthopper control and rice defense against planthoppers are also put forward. © 2019 Society of Chemical Industry

show abstract

Honeydew-associated microbes elicit defense responses against brown planthopper in rice

Abstract: The digestive waste product of sucking herbivores, known as honeydew, betrays the presence of brown planthopper to rice plants, due to the bacteria contained in the honeydew secretions.

Cited by 52 publications

References 97 publications

Current understanding of the genomic, genetic, and molecular control of insect resistance in rice

Current understanding of the genomic, genetic, and molecular control of insect resistance in rice

Expression of Chemosensory Protein (CSP) Structures in Pediculus humanis corporis and Acinetobacter baumannii

Current understanding of the molecular players involved in resistance to rice planthoppers

Contact Info

Product

Resources

About