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Spraying calcium chloride helps to enhance the resistance of kidney bean plants to western flower thrips.
Zeng, Guang; Zhang, Tao; Yue, Wen-Bo; Tian, Shan-Jun; Cao, Yu; Ye, Mao; Zhi, Jun-Rui.
Afiliación
  • Zeng G; Institute of Entomology, Guizhou University, The Provincial Key Laboratory for Agricultural Pest Management of the Mountainous Region, Guiyang, China.
  • Zhang T; Department of Resources and Environment, Moutai Institute, Renhuai, China.
  • Yue WB; Institute of Entomology, Guizhou University, The Provincial Key Laboratory for Agricultural Pest Management of the Mountainous Region, Guiyang, China.
  • Tian SJ; Institute of Entomology, Guizhou University, The Provincial Key Laboratory for Agricultural Pest Management of the Mountainous Region, Guiyang, China.
  • Cao Y; College of Agriculture, Guizhou University, Guiyang, China.
  • Ye M; Guizhou Provincial Key Laboratory for Rare Animal and Economic Insect of the Mountainous Region, Department of Biology and Engineering of Environment, Guiyang University, Guiyang, China.
  • Zhi JR; Institute of Entomology, Guizhou University, The Provincial Key Laboratory for Agricultural Pest Management of the Mountainous Region, Guiyang, China.
Pest Manag Sci ; 2024 Sep 20.
Article en En | MEDLINE | ID: mdl-39305065
ABSTRACT

BACKGROUND:

The western flower thrips (WFT), Frankliniella occidentalis (Thysanoptera Thripidae), is a significant pest in horticulture and ornamental agriculture. While exogenous calcium (Ca) has been shown to confer plant immune responses against thrips, the detailed mechanisms of this interaction remain to be elucidated for improved thrips management strategies. This study aimed to assess the impact of exogenous Ca on WFT feeding behavior and to explore its role in enhancing the defense mechanisms of kidney bean plants against WFT attacks. We compared WFT feeding preferences and efficiency on kidney bean plants treated with H2O or Ca, and examined whether exogenous Ca improves plant defense responses to thrips attack.

RESULTS:

WFT exhibited less preference for feeding on Ca-treated plants over H2O-treated ones. The total duration of WFT's long-ingestion probes was significantly reduced on Ca-treated plants, indicating impaired feeding efficiency. Furthermore, WFT infestation activated both jasmonic acid (JA) and salicylic acid (SA) signaling pathways in kidney bean plants, and exogenous Ca application led to elevated levels of endogenous Ca2+ and CaM, up-regulation of genes associated with JA and SA pathways (LOX, AOS, PAL, and ß-1,3-glucanase), and increased accumulation of JA, SA, flavonoids, and alkaloids.

CONCLUSION:

Our findings demonstrate that the application of exogenous Ca enhances endogenous Ca2+, JA, and SA signaling pathways in kidney bean plants. This enhancement results in an up-regulation of the biosynthesis of flavonoid and alkaloid, thereby equipping the plants with an enhanced defense against WFT infestation. © 2024 Society of Chemical Industry.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Pest Manag Sci Asunto de la revista: TOXICOLOGIA Año: 2024 Tipo del documento: Article País de afiliación: China Pais de publicación: Reino Unido
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Pest Manag Sci Asunto de la revista: TOXICOLOGIA Año: 2024 Tipo del documento: Article País de afiliación: China Pais de publicación: Reino Unido