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Article: The functional decline of tomato plants infected by

Chuan, Jiacheng / Nie, Jingbai / Cooper, William Rodney / Chen, Wen / Hale, Lawrence / Li, Xiang

2024 Volume 15, Page(s) 1325254

Abstract: Introduction: Candidatus: Methods: Next-generation sequencing (NGS) data were generated from total RNA of tomato plants infected by : Results: Plants infected with : Discussion: This study provides insights into plants' defense and functional ... ...

Abstract	Introduction: Candidatus Methods: Next-generation sequencing (NGS) data were generated from total RNA of tomato plants infected by Results: Plants infected with Discussion: This study provides insights into plants' defense and functional decline due to pathogenic
Language	English
Publishing date	2024-02-01
Publishing country	Switzerland
Document type	Journal Article
ZDB-ID	2613694-6
ISSN	1664-462X
ISSN	1664-462X
DOI	10.3389/fpls.2024.1325254
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Article ; Online: High-throughput molecular gut content analysis of aphids identifies plants relevant for potato virus Y epidemiology.

Pitt, William Jacob / Cooper, William Rodney / Pouchnik, Derek / Headrick, Heather / Nachappa, Punya

Insect science

2024

Abstract: Aphids are phloem-feeding insects that reduce crop productivity due to feeding and transmission of plant viruses. When aphids disperse across the landscape to colonize new host plants, they will often probe on a wide variety of nonhost plants before ... ...

Abstract	Aphids are phloem-feeding insects that reduce crop productivity due to feeding and transmission of plant viruses. When aphids disperse across the landscape to colonize new host plants, they will often probe on a wide variety of nonhost plants before settling on a host suitable for feeding and reproduction. There is limited understanding of the diversity of plants that aphids probe on within a landscape, and characterizing this diversity can help us better understand host use patterns of aphids. Here, we used gut content analysis (GCA) to identify plant genera that were probed by aphid vectors of potato virus Y (PVY). Aphids were trapped weekly near potato fields during the growing seasons of 2020 and 2021 in San Luis Valley in Colorado. High-throughput sequencing of plant barcoding genes, trnF and ITS2, from 200 individual alate (i.e., winged) aphids representing nine vector species of PVY was performed using the PacBio sequencing platform, and sequences were identified to genus using NCBI BLASTn. We found that 34.7% of aphids probed upon presumed PVY host plants and that two of the most frequently detected plant genera, Solanum and Brassica, represent important crops and weeds within the study region. We found that 75% of aphids frequently probed upon PVY nonhosts including many species that are outside of their reported host ranges. Additionally, 19% of aphids probed upon more than one plant species. This study provides the first evidence from high-throughput molecular GCA of aphids and reveals host use patterns that are relevant for PVY epidemiology.
Language	English
Publishing date	2024-02-06
Publishing country	Australia
Document type	Journal Article
ZDB-ID	2179775-4
ISSN	1744-7917 ; 1672-9609
ISSN (online)	1744-7917
ISSN	1672-9609
DOI	10.1111/1744-7917.13327
Database	MEDical Literature Analysis and Retrieval System OnLINE

2024 Volume 108, Issue 1, Page(s) 113–117

Abstract: The potato/tomato psyllid, ...

Abstract	The potato/tomato psyllid,
MeSH term(s)	Animals ; Physalis ; Liberibacter ; Hemiptera ; Solanum tuberosum ; Solanum lycopersicum
Language	English
Publishing date	2024-01-03
Publishing country	United States
Document type	Journal Article
ZDB-ID	754182-x
ISSN	0191-2917
ISSN	0191-2917
DOI	10.1094/PDIS-02-23-0350-RE
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Article ; Online: Bacterial Endosymbionts Identified From Leafhopper (Hemiptera: Cicadellidae) Vectors of Phytoplasmas.

Cooper, William Rodney / Walker, William B / Angelella, Gina M / Swisher Grimm, Kylie D / Foutz, Jillian J / Harper, Scott J / Nottingham, Louis B / Northfield, Tobin D / Wohleb, Carrie H / Strausbaugh, Carl A

Environmental entomology

2023 Volume 52, Issue 2, Page(s) 243–253

Abstract: Insects often harbor bacterial endosymbionts that provide them with nutritional benefit or with protection against natural enemies, plant defenses, insecticides, and abiotic stresses. Certain endosymbionts may also alter acquisition and transmission of ... ...

Abstract	Insects often harbor bacterial endosymbionts that provide them with nutritional benefit or with protection against natural enemies, plant defenses, insecticides, and abiotic stresses. Certain endosymbionts may also alter acquisition and transmission of plant pathogens by insect vectors. We identified bacterial endosymbionts from four leafhopper vectors (Hemiptera: Cicadellidae) of 'Candidatus Phytoplasma' species by direct sequencing 16S rDNA and confirmed endosymbiont presence and identity by species-specific conventional PCR. We examined three vectors of Ca. Phytoplasma pruni, causal agent of cherry X-disease [Colladonus geminatus (Van Duzee), Colladonus montanus reductus (Van Duzee), Euscelidius variegatus (Kirschbaum)] - and a vector of Ca. Phytoplasma trifolii, the causal agent of potato purple top disease [Circulifer tenellus (Baker)]. Direct sequencing of 16S identified the two obligate endosymbionts of leafhoppers, 'Ca. Sulcia' and 'Ca. Nasuia', which are known to produce essential amino acids lacking in the leafhoppers' phloem sap diet. About 57% of C. geminatus also harbored endosymbiotic Rickettsia. We identified 'Ca. Yamatotoia cicadellidicola' in Euscelidius variegatus, providing just the second host record for this endosymbiont. Circulifer tenellus harbored the facultative endosymbiont Wolbachia, although the average infection rate was only 13% and all males were Wolbachia-uninfected. A significantly greater percentage of Wolbachia-infected Ci. tenellus adults than uninfected adults carried Ca. P. trifolii, suggesting that Wolbachia may increase this insect's ability to tolerate or acquire this pathogen. Results of our study provide a foundation for continued work on interactions between leafhoppers, bacterial endosymbionts, and phytoplasma.
MeSH term(s)	Male ; Animals ; Hemiptera/genetics ; Phytoplasma/genetics ; Bacteria/genetics ; Polymerase Chain Reaction ; Insect Vectors/microbiology ; Plant Diseases/microbiology
Language	English
Publishing date	2023-03-04
Publishing country	England
Document type	Journal Article
ZDB-ID	120799-4
ISSN	1938-2936 ; 0046-2268 ; 0046-225X
ISSN (online)	1938-2936
ISSN	0046-2268 ; 0046-225X
DOI	10.1093/ee/nvad015
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Article: Molecular Advances in Larval Fruit Moth Identification to Facilitate Fruit Export From Western United States Under Systems Approaches

Yokomi, Raymond / Delgado, Jennifer K. / Unruh, Thomas R. / Barcenas, Nina M. / Garczynski, Stephen F. / Walse, Spencer / Pérez de León, Adalberto A. / Cooper, William Rodney

Annals of the Entomological Society of America. 2021 Sept. 24, v. 115, no. 1

2021

Abstract: Molecular advances facilitate fruit export by improving rapid pest diagnosis by polymerase chain reaction (PCR) and advanced sequencing technology. Improved pest detection provides timely certification of the quarantine pest-free status in the commodity ... ...

Abstract	Molecular advances facilitate fruit export by improving rapid pest diagnosis by polymerase chain reaction (PCR) and advanced sequencing technology. Improved pest detection provides timely certification of the quarantine pest-free status in the commodity being exported, avoiding unnecessary commodity treatment. The U.S.–Japan Systems Approach to export fresh cherries from the Western United States that targets the codling moth, Cydia pomonella (Linnaeus) (Lepidoptera: Tortricidae), is used as an example. Suspect codling moth larvae interdicted at cherry packing houses are distinguished by PCR from other internal fruit moth larvae such as the oriental fruit moth, Grapholita molesta (Busck) (Lepidoptera: Tortricidae); lesser appleworm, G. prunivora (Walsh) (Lepidoptera: Tortricidae); cherry fruitworm, G. packardi (Zeller) (Lepidoptera: Tortricidae); and filbertworm, Cydia latiferreana (Walsingham) (Lepidoptera: Tortricidae). Identification is confirmed by sequencing the amplicon of a 301 bp region of the COI gene produced by PCR of the DNA from a suspect moth and comparing this sequence of COI gene sequences of other internal fruit feeders of pome fruit. This sequence comparison results in unambiguous pest identification. These findings are discussed in the context of systems approach research to meet evolving needs of phytosanitary requirements for global export of fruits.
Keywords	Cydia latiferreana ; Cydia pomonella ; DNA ; Grapholita molesta ; Grapholita packardi ; Grapholita prunivora ; certification ; cherries ; exports ; fruits ; genes ; moths ; pest identification ; pests ; polymerase chain reaction ; pome fruits ; quarantine ; sequence analysis
Language	English
Dates of publication	2021-0924
Size	p. 105-112.
Publishing place	Entomological Society of America
Document type	Article
ZDB-ID	338-4
ISSN	0013-8746
ISSN	0013-8746
DOI	10.1093/aesa/saab040
Database	NAL-Catalogue (AGRICOLA)

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Article: Collection of salivary proteins of psyllids (Hemiptera: Psylloidea)

Jimenez, Floricel / Cooper, William Rodney / Garczynski, Stephen F / Puterka, Gary J / Barcenas, Nina M

Journal of Entomological Science. 2017 Apr., v. 52, no. 2

2017

Abstract: Phloem-feeding insects discharge into the phloem of host plants copious amounts of enzymatically active saliva which prevents phloem occlusion and suppresses plant defenses. Although previous reports have documented the composition and roles of salivary ... ...

Abstract	Phloem-feeding insects discharge into the phloem of host plants copious amounts of enzymatically active saliva which prevents phloem occlusion and suppresses plant defenses. Although previous reports have documented the composition and roles of salivary proteins from aphids, there are no published studies on the saliva of any psyllid species. To support future studies on the salivary proteins of psyllid pests, the objective of our study was to develop methods of collecting large quantities of salivary proteins from psyllids. Results of a series of bioassays demonstrated that potato psyllid and pear psylla both preferentially feed on 30% sucrose compared with other sucrose concentrations, and that the addition of amino acids or sorbitol to sucrose did not increase psyllid feeding rates. Salivary proteins from 7500 potato psyllid adults were then concentrated and observed using SDS-PAGE, demonstrating that psyllids actively discharge salivary proteins into the artificial diet while feeding. A more comprehensive analysis of psyllid salivary proteins using our collection methods will lead to a better understanding of psyllid/plant interactions, and of transmission of plant pathogens including Liberibacter and Phytoplasma.
Keywords	Aphidoidea ; Bactericera cockerelli ; Cacopsylla ; Candidatus Liberibacter ; Phytoplasma ; adults ; amino acids ; artificial diets ; bioassays ; feeding preferences ; host plants ; insects ; pests ; phloem ; polyacrylamide gel electrophoresis ; proteins ; saliva ; sorbitol ; sucrose
Language	English
Size	p. 201-206.
Document type	Article
ZDB-ID	12629-9
ISSN	0749-8004
ISSN	0749-8004
DOI	10.18474/JES16-08.1
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Article: The Venom Compound N-(3-methylbutyl)acetamide Attracts Several Polistes (Fuscopolistes) Species (Hymenoptera: Vespidae)

Elmquist, Dane C / Landolt, Peter J / Cooper, William Rodney / Reed, Hal / Foutz, Jillian / Clepper, Timothy / Kacprzyk, Bryon / Teig, Donald / Zack, Richard S

Journal of economic entomology. 2020 Apr. 9, v. 113, no. 3

2020

Abstract: Polistes paper wasps in the Fuscopolistes subgenus (Hymenoptera: Vespidae) can be serious pests when they swarm at tall man-made structures. Chemical attractants may be useful to trap such paper wasps when they achieve pest status. Polistes venom has ... ...

Abstract	Polistes paper wasps in the Fuscopolistes subgenus (Hymenoptera: Vespidae) can be serious pests when they swarm at tall man-made structures. Chemical attractants may be useful to trap such paper wasps when they achieve pest status. Polistes venom has been shown to elicit a variety of behavioral responses in congeneric wasps, making it a source for potential chemical attractants. The compound N-(3-methylbutyl)acetamide is a principal volatile component in the venom of many female vespid wasps, including numerous Polistes species. We report the presence of N-(3-methylbutyl)acetamide in autumn gynes of Polistes metricus Say, Polistes bellicosus Cresson, and Polistes dorsalis (F.), as well as workers of Polistes aurifer (Saussure), P. bellicosus, P. metricus, and P. dorsalis. In field tests conducted in Florida, Georgia, South Carolina, and Washington, N-(3methylbutyl)acetamide attracted male and female P. aurifer and P. metricus, as well as male P. dorsalis and P. bellicosus. Thus, N-(3-methylbutyl)acetamide may be a useful lure for trapping these paper wasps in pest situations.
Keywords	Polistes aurifer ; Polistes metricus ; attractants ; autumn ; entomology ; females ; males ; paper ; pests ; venoms ; Florida ; Georgia ; South Carolina
Language	English
Dates of publication	2020-0409
Size	p. 1073-1079.
Publishing place	Entomological Society of America
Document type	Article
Note	NAL-AP-2-clean
ZDB-ID	3031-4
ISSN	0022-0493
ISSN	0022-0493
DOI	10.1093/jee/toaa065
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Book ; Thesis: Chestnut defenses affect generalist and specialist herbivore responses and influence community dynamics

Cooper, William Rodney

2007

Author's details	by William Rodney Cooper
Keywords	American chestnut/Insect resistance. ; Chinese chestnut/Insect resistance. ; Gypsy moth/Biological control. ; Gall insects.
Language	English
Size	ix, 175 leaves :, ill., map ;, 29 cm.
Publisher	s.n.
Publishing place	Lexington, Ky
Document type	Book ; Thesis
Thesis / German Habilitation thesis	Thesis (Ph. D.)--University of Kentucky, 2007
Note	Abstract ([2] leaves) bound with copy. ; Vita.
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Article ; Online: The Venom Compound N-(3-methylbutyl)acetamide Attracts Several Polistes (Fuscopolistes) Species (Hymenoptera: Vespidae).

Elmquist, Dane C / Landolt, Peter J / Cooper, William Rodney / Reed, Hal / Foutz, Jillian / Clepper, Timothy / Kacprzyk, Bryon / Teig, Donald / Zack, Richard S

Journal of economic entomology

2019 Volume 113, Issue 3, Page(s) 1073–1079

Abstract	Polistes paper wasps in the Fuscopolistes subgenus (Hymenoptera: Vespidae) can be serious pests when they swarm at tall man-made structures. Chemical attractants may be useful to trap such paper wasps when they achieve pest status. Polistes venom has been shown to elicit a variety of behavioral responses in congeneric wasps, making it a source for potential chemical attractants. The compound N-(3-methylbutyl)acetamide is a principal volatile component in the venom of many female vespid wasps, including numerous Polistes species. We report the presence of N-(3-methylbutyl)acetamide in autumn gynes of Polistes metricus Say, Polistes bellicosus Cresson, and Polistes dorsalis (F.), as well as workers of Polistes aurifer (Saussure), P. bellicosus, P. metricus, and P. dorsalis. In field tests conducted in Florida, Georgia, South Carolina, and Washington, N-(3-methylbutyl)acetamide attracted male and female P. aurifer and P. metricus, as well as male P. dorsalis and P. bellicosus. Thus, N-(3-methylbutyl)acetamide may be a useful lure for trapping these paper wasps in pest situations.
MeSH term(s)	Acetamides ; Animals ; Female ; Florida ; Georgia ; Hymenoptera ; Male ; South Carolina ; Venoms ; Washington ; Wasps
Chemical Substances	Acetamides ; Venoms
Language	English
Publishing date	2019-11-29
Publishing country	England
Document type	Journal Article ; Research Support, U.S. Gov't, Non-P.H.S.
ZDB-ID	3031-4
ISSN	1938-291X ; 0022-0493
ISSN (online)	1938-291X
ISSN	0022-0493
DOI	10.1093/jee/toaa065
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Article ; Online: Survival and development of potato psyllid (Hemiptera: Triozidae) on Convolvulaceae: Effects of a plant-fungus symbiosis (Periglandula).

Kaur, Navneet / Cooper, William Rodney / Duringer, Jennifer M / Badillo-Vargas, Ismael E / Esparza-Díaz, Gabriela / Rashed, Arash / Horton, David R

PloS one

2018 Volume 13, Issue 9, Page(s) e0201506

Abstract: Plant species in the family Solanaceae are the usual hosts of potato psyllid, Bactericera cockerelli (Šulc) (Hemiptera: Psylloidea: Triozidae). However, the psyllid has also been shown to develop on some species of Convolvulaceae (bindweeds and morning ... ...

Abstract	Plant species in the family Solanaceae are the usual hosts of potato psyllid, Bactericera cockerelli (Šulc) (Hemiptera: Psylloidea: Triozidae). However, the psyllid has also been shown to develop on some species of Convolvulaceae (bindweeds and morning glories). Developmental success on Convolvulaceae is surprising given the rarity of psyllid species worldwide associated with this plant family. We assayed 14 species of Convolvulaceae across four genera (Convolvulus, Calystegia, Ipomoea, Turbina) to identify species that allow development of potato psyllid. Two populations of psyllids were assayed (Texas, Washington). The Texas population overlaps extensively with native Convolvulaceae, whereas Washington State is noticeably lacking in Convolvulaceae. Results of assays were overlain on a phylogenetic analysis of plant species to examine whether Convolvulaceae distantly related to the typical host (potato) were less likely to allow development than species of Convolvulaceae more closely related. Survival was independent of psyllid population and location of the plant species on our phylogenetic tree. We then examined whether presence of a fungal symbiont of Convolvulaceae (Periglandula spp.) affected psyllid survival. These fungi associate with Convolvulaceae and produce a class of mycotoxins (ergot alkaloids) that may confer protection against plant-feeding arthropods. Periglandula was found in 11 of our 14 species, including in two genera (Convolvulus, Calystegia) not previously known to host the symbiont. Of these 11 species, leaf tissues from five contained large quantities of two classes of ergot alkaloids (clavines, amides of lysergic acid) when evaluated by LC-MS/MS. All five species also harbored Periglandula. No ergot alkaloids were detected in species free of the fungal symbiont. Potato psyllid rapidly died on the five species that harbored Periglandula and contained ergot alkaloids, but survived to adulthood on seven of the nine species in which ergot alkaloids were not detected. These results support the hypothesis that a plant-fungus symbiotic relationship affects the suitability of certain Convolvulaceae to potato psyllid.
MeSH term(s)	Animals ; Ascomycota/growth & development ; Hemiptera/growth & development ; Phylogeny ; Solanum tuberosum/microbiology ; Solanum tuberosum/parasitology ; Symbiosis/physiology
Language	English
Publishing date	2018-09-11
Publishing country	United States
Document type	Journal Article ; Research Support, Non-U.S. Gov't ; Research Support, U.S. Gov't, Non-P.H.S.
ISSN	1932-6203
ISSN (online)	1932-6203
DOI	10.1371/journal.pone.0201506
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