The response of citrus plants to the broad mitePolyphagotarsonemus latus(Banks) (Acari: Tarsonemidae)

Abstract

Polyphagotarsonemus latus (Banks) (Acari: Tarsonemidae) is a common polyphagous mite in tropical and subtropical areas and is considered as an important citrus pest. 2 To understand the response of citrus to P. latus infestation, we have characterized the volatile profile and the molecular defence mechanisms of two citrus genotypes, namely sour orange (Citrus aurantium) and Cleopatra mandarin (Citrus reshni), to P. latus infestation. These two species are important rootstocks for the citrus industry and display differential resistance to Tetranychus urticae Koch (Acari: Tetranychidae), with sour orange showing elevated levels of constitutive and induced resistance associated with the jasmonic acid (JA) pathway compared with Cleopatra mandarin. 3 P. latus infestation activated both the JA-and the salicylic acid-dependent pathways in sour orange but not in Cleopatra mandarin. However, this differential activation resulted in the production of similar volatile blends (a mixture of green leaf volatiles and aromatic compounds). 4 Contrary to T. urticae infestation, sour orange supported larger densities of P. latus than Cleopatra mandarin with similar injury levels. 5 Therefore, sour orange may be more tolerant to P. latus than Cleopatra mandarin.

Jasmonic Acid and Salicylic Acid Levels in Defense Response of Azalea (Rhododendron simsii Hybrid) to Broad Mite (Polyphagotarsonemus latus)

“…In a study by Grinberg et al [9] using Northern blot analysis, it was shown that both the JA and SA pathways are activated in response to broad mites on cucumber. In citrus, P. latus infestation activated both the JA-and the SA-dependent pathways in sour orange but no activation was observed in Cleopatra mandarin [39].…”

“…Additionally, 'Nordlicht' had lower mite numbers and a lower SA level compared to experiment 2. Additionally, in other crops, a differential response towards broad mite was found, e.g., in citrus, sour orange supported larger densities than Cleopatra mandarin but the levels of injury were similar [39], and in 36 genotypes of common bean (Phaseolus vulgaris), differences in P. latus infestation were found [61].…”

Ekspresi morfologi tiga jenis jeruk sebagai indikator ketahanan terhadap serangan Polyphagotarsonemus latus (Banks) (Acari: Tarsonemidae)

“…Selain aplikasi akarisida, terdapat beberapa pengendalian yang berkonsep pengendalian hama terpadu (Astoni et al 2015). Meskipun dilakukan pengendalian, tanaman memiliki tingkat ketahanan yang menyebabkan tanaman dapat tumbuh dan berkembang walaupun terdapat kerusakan yang disebabkan oleh TPJ (Parisi et al 2020;Cabedo-Lopez et al 2021).…”

Morphological and genetic characterization of the broad mite Polyphagotarsonemus latus Banks (Acari: Tarsonemidae) from two Mexican populations

“…It is considered a significant polyphagous pest of global agroeconomic importance which especially affects citrus production—sweet orange ( Citrus x sinensis [L.] Osbeck), bitter orange ( Citrus x aurantium L.), Cleopatra mandarin ( Citrus reshni Hort. Ex Tanaka) [ 2 , 3 ] but also various species of chilli ( Capsicum annuum L., Capsicum frutescens L.), among several crops [ 4 – 7 ].…”