Behavioral and Molecular‐Genetic Basis of Resistance against Phloem‐Feeding Insects

Walling, Linda L.; Thompson, Gary A.

doi:10.1002/9781118382806.ch16

Cited by 12 publications

(12 citation statements)

References 160 publications

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“…Use of the electrical penetration graph (EPG) technique has revealed details of host plant suitability and feeding behavior, including probing frequency, duration of stylet insertion, duration of phloem or xylem feeding, and honeydew secretion (Velusamy et al, 1986;Hao et al, 2008;Walling and Thompson, 2013). Salivary secretion involves several phases including intercellular sheath secretion, intracellular salivation into rice cells along the stylet path, initial phloem salivation, and phloem-feeding salivation (Velusamy et al, 1986;Cherqui, 2000).…”

Section: Bph Behavior On Rice Plantsmentioning

confidence: 99%

Towards Understanding of Molecular Interactions between Rice and the Brown Planthopper

2013

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The brown planthopper (BPH) is the most notorious pest of rice (Oryza sativa). Studies of rice-BPH interaction have contributed to development of new rice varieties, offering an effective means for long-lasting control of BPH. Here, we review the status of knowledge of the molecular basis of rice-BPH interaction, from the perspective of immunity. The BPH has complicated feeding behaviors on rice, which are mainly related to host resistance. Now, 24 resistance genes have been detected in rice, indicating gene-for-gene relationships with biotypes of the BPH. However, only one BPH resistance gene (Bph14) was identified and characterized using map-based cloning. Bph14 encodes an immune receptor of NB-LRR family, providing a means for studying the molecular mechanisms of rice resistance to BPH. Plant hormones (e.g. salicylic acid and jasmonate/ethylene), Ca(2+), mitogen-activated protein kinases (MAPKs), and OsRac1 play important roles in the immune response of rice to BPH. Signal transduction leads to modifying expression of defense-related genes and defense mechanisms against BPH, including sieve tube sealing, production of secondary metabolites, and induction of proteinase inhibitor. A model for the molecular interactions between rice and the BPH is proposed, although many details remain to be investigated that are valuable for molecular design of BPH-resistant rice varieties.

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Section: Bph Behavior On Rice Plantsmentioning

confidence: 99%

Towards Understanding of Molecular Interactions between Rice and the Brown Planthopper

2013

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“…BPHs attack the phloem by first transiently probing the epidermic cells with their stylet mouthparts, then penetrating the cell walls to reach the phloem, subsequently salivating and finally ingesting the phloem sap (Hao et al, 2008;Wang et al, 2008a). There is a growing body of evidence indicating that most of the primary mechanisms of host resistance to phloem-feeding pests act in the phloem, giving rise to the term phloem-based resistance (Walling and Thompson, 2012). In resistant rice, BPH feeding up-regulates callose synthase genes and induces callose deposition on the sieve plate of the sieve tube that is inserted by BPH stylets, which directly prevents the continuation of BPH feeding (Hao et al, 2008).…”

Section: Introductionmentioning

confidence: 98%

Phloem-exudate proteome analysis of response to insect brown plant-hopper in rice

Wei

Wang

et al. 2015

Journal of Plant Physiology

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“…Also, during BPH feeding, the deposition of callose on the sieve plate also differs between BPH susceptible and resistant plants (Hao et al., ). Resistance factors are thought to occur within the phloem and in the pathways to the vascular system (Walling and Thompson, ).…”

Section: Introductionmentioning

confidence: 99%

Differentially Regulated Genes in the Salivary Glands of Brown Planthopper After Feeding in Resistant Versus Susceptible Rice Varieties

Wang

Zhang

Feng

et al. 2015

Arch Insect Biochem Physiol

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Brown planthopper (BPH) is a damaging insect pest of rice. We used suppression subtractive hybridization (SSH) and mirror orientation selection to identify differentially regulated genes in salivary glands of BPH after feeding on resistant and susceptible varieties. The forward SSH library included 768 clones with insertions ranging from 250 to 1000 bp. After differential screening, a total of 112 transcripts were identified, which included 27 upregulated genes and seven downregulated genes. Several of these transcripts showed sequence homology to known proteins such as trehalase, mucin-like protein, vitellogenin, calcium ion binding protein, and eukaryotic initiation factor-like protein. About half of the transcripts, however, did not match to any sequences in the protein databases currently available. Functional annotation of the transcripts showed gene ontology association with metabolism, signal transduction, and regulatory responses. Notably, many known functional genes were predicted to be secreted proteins. Also, gene expression profiles of the salivary glands of BPH feeding on resistant rice (B5) and susceptible rice (TN1) varieties were compared. Our data provide a molecular resource for future functional studies on salivary glands and will be useful for elucidating the molecular mechanisms between BPH feeding and rice varieties with BPH resistance differences.

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Behavioral and Molecular‐Genetic Basis of Resistance against Phloem‐Feeding Insects

Cited by 12 publications

References 160 publications

Towards Understanding of Molecular Interactions between Rice and the Brown Planthopper

Towards Understanding of Molecular Interactions between Rice and the Brown Planthopper

Phloem-exudate proteome analysis of response to insect brown plant-hopper in rice

Differentially Regulated Genes in the Salivary Glands of Brown Planthopper After Feeding in Resistant Versus Susceptible Rice Varieties

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