Barley Varieties Stoneham and Sydney Exhibit Mild Antibiosis and Antixenosis Resistance to the Wheat Curl Mite, Aceria tosichella (Keifer)

Abstract

The wheat curl mite, Aceria tosichella (Keifer), devastates cereal crops worldwide by direct feeding damage and transmission of several deadly viruses. Deployment of cereal crop varieties resistant to A. tosichella is key for reduction of crop yield losses, and management of this mite and associated viruses that it transmits. Barley varieties resistant to A. tosichella are not known to exist. The objectives of this study were to determine if A. tosichella resistance exists in the barley varieties Sydney and Stoneham, which are resistant to the Russian wheat aphid, Diuraphis noxia (Kurjumov), and, further, to determine which categories mediate the resistance. Categories of resistance to both A. tosichella biotypes were evaluated independently in non-choice and choice experiments using wheat varieties Ike and OK05312 as susceptible and resistant controls, respectively. Sydney barley displays mild antixenosis and antibiosis resistance to A. tosichella biotype 1 and 2, respectively. Stoneham barley exhibits only mild antibiosis to biotype 2. No evidence for plant tolerance was found in either barley variety to either mite biotype.

Two-step method for rapid isolation of genomic DNA and validation of R81T insecticide resistance mutation in Myzus persicae

“…Nucleic acid isolation has become an indispensable technique in insect pest research including taxonomic classification, population genetics, vector diagnostics, evolutionary studies, and insecticide-resistant mutant allele detection ( Aguirre-Rojas et al, 2019 , Altameme and Ibraheam, 2019 , Al-Saad and Aletby, 2018 ). A wide range of such studies require enormous samples, hundreds or even thousands at once, and DNA extraction then becomes a seizing step in research in terms of cost, time, and sophisticated equipment access.…”

Reactive oxygen species metabolism and photosynthetic performance in leaves of Hordeum vulgare plants co-infested with Heterodera filipjevi and Aceria tosichella

“…This is the most significant economic impact of WCM on cereal yielding. As a result of WCM feeding or WSMV transmission on cereal leaves, the grain yield losses may reach up to 40% (Skoracka et al 2017(Skoracka et al , 2018aAguirre-Rojas et al 2019).…”

Estimating the infection severity and infection percentage by aphids on eggplant varieties

“…Arthropod pests are very important in affecting the world economy (Aguirre-Rojas et al, 2019;Zhao et al, 2019;Kern et al, 2022;Khalaf et al, 2023). The family of Aphididae is one of the arthropod families which plays an essential role in reducing many crops' yields worldwide due to causing direct damage to many hosts, and indirect damage by transmitting many agriculturally important plant viruses (Adhab, 2010(Adhab, , 2021Al-Ani et al, 2011a;Adhab & Schoelz, 2015;Adhab et al, 2019).…”

“…Searching for new sources of resistance to arthropods is a key factor to reduce the yield loss (Chuang et al, 2017;Aguirre-Rojas et al, 2019;Khalaf et al, 2019), due to a few studies have evaluated the behavior of eggplant genotypes under the stress of A. gossypii, this study amid to assess the resistance of 10 eggplant genotypes to A. gossypii to develop a sustainable agricultural and thus, improve the cotton aphid management.…”