Article
Agronomy
Justyna Szwarc, Janetta Niemann, Jan Bocianowski, Monika Jakubus, Marek Mrowczynski
Summary: This study investigated the relationship between nutrient content and resistance to common pests in Brassicaceae plants. It found significant negative association between calcium and resistance to pests, as well as positive association between copper and resistance to one of the pests. The importance of selected mineral elements in plant resistance was widely discussed.
Article
Biochemistry & Molecular Biology
Shixiong Qian, Ayesha Ahmed, Pengbo He, Pengfei He, Shahzad Munir, Mengyuan Xia, Chaoyun Tang, Ping Tang, Zaiqiang Wang, Rizwan Khan, Xingyu Li, Yixin Wu, Yueqiu He
Summary: In this study, the colonization and aphicidal effects of Bacillus amyloliquefaciens AK-12 with a green fluorescent protein tag in rapeseed plants were investigated. The results showed that AK-12 could effectively reduce aphid transmission rate, improve rapeseed seedling growth, and exhibit phosphorus, potassium-solubilizing, and nitrogen-fixing activity. Moreover, AK-12 treatment activated defense enzymes and resistance genes, enhancing the pest resistance in rapeseed.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Physiology
Rehan Inayat, Aroosa Khurshid, Solomon Boamah, Shuwu Zhang, Bingliang Xu
Summary: Aphids, common insect pests in greenhouse and field crops, cause significant losses in crop yields and economy. This study investigates the effects of Trichoderma longibrachiatum T6 on mortality, enzymatic antioxidant activity, and gene expression of cabbage aphids. The results demonstrate that T6 has the potential to be used as a natural biocontrol agent against cabbage aphids due to its impact on antioxidant activity and mortality.
FRONTIERS IN PHYSIOLOGY
(2022)
Review
Biochemistry & Molecular Biology
Chaoying Zhang, Chunyu Du, Yuwei Li, Huiying Wang, Chunyu Zhang, Peng Chen
Summary: Clubroot disease is a soil-borne disease caused by Plasmodiophora brassicae, which exclusively occurs in cruciferous crops and seriously damages their economic value worldwide. The most effective way to prevent the spread of the disease is to explore and use disease-resistance genes to breed resistant varieties. However, the resistance level of plant hosts is influenced by both environment and pathogen race. This article describes clubroot disease in terms of discovery and distribution, life cycle, and race identification systems, and summarizes recent progress on control methods and breeding practices for resistant cultivars. Feasible strategies for disease-resistance breeding in the future are discussed based on the identified resistance loci and R genes.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Multidisciplinary Sciences
Muhammad Afaq Ahmed, Ning Ban, Sarfaraz Hussain, Raufa Batool, Yong-Jun Zhang, Tong-Xian Liu, He-He Cao
Summary: This study found that the green peach aphid, Myzus persicae, preferred and performed better on Chinese cabbage compared to cabbage and radish. The higher concentration of amino acids and lower levels of indole glucosinolates in Chinese cabbage leaves may contribute to this preference. On the other hand, the higher level of glucosinolates and lower concentration of amino acids in cabbage and radish, respectively, may explain the poorer preference and growth of the aphids on these plants. These findings suggest that both amino acids and glucosinolates play important roles in the preference and performance of Myzus persicae, providing valuable knowledge for the cultivation and breeding of Brassicaceae vegetables.
Article
Multidisciplinary Sciences
Saini Mayanglambam, Kabrambam Dasanta Singh, Yallappa Rajashekar
Summary: Cabbage, a commonly found vegetable, is often plagued by pests leading to negative impacts from the use of synthetic pesticides. Research on biological control methods is crucial for effective pest management and environmental protection.
SCIENTIFIC REPORTS
(2021)
Article
Plant Sciences
Xoaquin Moreira, Luis Abdala-Roberts, Rieta Gols, Beatriz Lago-Nunez, Sergio Rasmann, Gregory Roeder, Pilar Soengas, Carla Vazquez-Gonzalez, Maria Elena Cartea
Summary: This study provides strong evidence for volatile-mediated indirect interactions between plant enemies and pollinators, ultimately impacting plant fitness, with specificity in both the enemy and the compounds involved.
JOURNAL OF ECOLOGY
(2023)
Article
Genetics & Heredity
Li An, Zheng Fang, Qingbei Weng
Summary: The mitochondrial genome of Brevicoryne brassicae was determined through Illumina paired-end sequencing, revealing a genome size of 15,927 bp with a composition of 45.19% A, 39.03% T, 9.92% C, and 5.86% G. It contains 13 protein-coding genes, 22 transfer RNAs, and two ribosome RNAs. Phylogenetic analysis indicated a closer relationship between B. brassicae and the genus Diuraphis within the Aphididae family. This study offers valuable insights for future research on the evolution, genetics, and molecular biology of Brevicoryne.
MITOCHONDRIAL DNA PART B-RESOURCES
(2021)
Article
Agronomy
Zahra Sabeghi Khosroshahi, Habib Abbasipour, Alireza Rezazadeh
Summary: The study demonstrated that the aqueous extracts of common bean cultivars had inhibitory effects on the alpha-amylase enzyme activity of Brevicoryne brassicae. Among the bean extracts tested, red bean showed the highest inhibitory effect. The inhibition of the enzyme activity showed a dose-dependent pattern, with higher doses of inhibitor leading to greater inhibition of the enzyme.
ARCHIVES OF AGRONOMY AND SOIL SCIENCE
(2021)
Review
Plant Sciences
Abla Dela Mondedji, Pierre Silvie, Wolali Seth Nyamador, Pierre Martin, Lakpo Koku Agboyi, Komina Amevoin, Guillaume Koffivi Ketoh, Isabelle Adole Glitho
Summary: This paper reviewed the use of botanical extracts in protecting cabbage against pests in West Africa, finding that a variety of plant species can effectively control cabbage pests. Among them, Azadirachta indica is the most commonly used and tested plant species, serving as one of the most effective options.
Article
Multidisciplinary Sciences
Matthew A. Barbour, Daniel J. Kliebenstein, Jordi Bascompte
Summary: This study reveals that genes of one species can affect the persistence of interacting species in an ecological community. The experiment shows that plant defense genes can promote coexistence by increasing plant growth rate, leading to higher intrinsic growth rates of species across multiple trophic levels.
Article
Agronomy
Mostafa Mollaei, Seyed Ali Asghar Fathi, Gadir Nouri-Ganbalani, Mehdi Hassanpour, Ali Golizadeh
Summary: Intercropping canola with faba beans, field peas, or garlic can potentially decrease the density of cabbage aphids and increase canola yields. However, only the intercrop of canola with faba beans showed a significant increase in predator diversity and parasitism rate compared to monoculture.
PLANT PROTECTION SCIENCE
(2021)
Article
Entomology
Ruo Sun, Xingcong Jiang, Michael Reichelt, Jonathan Gershenzon, Daniel Giddings Vassao
Summary: This study investigated the metabolic fate of glucosinolates in the cabbage aphid and its predator, the lacewing Chrysoperla carnea. Different glucosinolates were accumulated at different rates in the aphids, and the production of less toxic products outweighed toxic isothiocyanate products after predation. The defensive cocktails significantly impaired lacewing development, indicating potential implications for integrated pest management targeting cabbage aphids.
JOURNAL OF PEST SCIENCE
(2021)
Article
Biotechnology & Applied Microbiology
Carmen K. Blubaugh, Jacob S. Asplund, Sabrina M. Judson, William E. Snyder
Summary: The study found that non-crop plant cover and high evenness among predators are associated with stronger predator activity and indirectly lead to lower herbivore densities, consistent with stronger biological control. However, non-crop plants attract invaders and disrupt evenness among other predators, potentially causing disruptive interference.
BIOLOGICAL CONTROL
(2021)
Article
Ecology
Ruo Sun, Benke Hong, Michael Reichelt, Katrin Luck, Duc Tam Mai, Xingcong Jiang, Jonathan Gershenzon, Daniel Giddings Vassao
Summary: Beauveria bassiana is a soil fungus that infects crop pests, but it can still parasitize chemically-defended aphids by detoxifying their toxins through the mercapturic acid pathway. This pathway enhances the growth of B. bassiana when isothiocyanates are present, making it an important factor in parasitization.
Article
Entomology
Marta Montoro, Henrik H. De Fine Licht, Lene Sigsgaard
Summary: We compare the effect of fruit flies as diet on predators, and find that fruit flies with high protein content provide the best results in terms of mortality and fecundity for predators.
Article
Entomology
Marta Montoro, Patrick De Clercq, Johannes Overgaard, Lene Sigsgaard
ENTOMOLOGIA EXPERIMENTALIS ET APPLICATA
(2020)
Article
Entomology
Marta Montoro, Per M. Jensen, Lene Sigsgaard
Article
Agronomy
Csaba Borbely, Zsuzsanna Gyorgy, Stine Kramer Jacobsen, Fadil Musa, Jana Ourednickova, Lene Sigsgaard, Michal Skalsky, Viktor Marko
Summary: The spiraea aphid (Aphis spiraecola Patch) has become a widespread pest in apple and citrus orchards throughout Europe in recent decades. Our study confirms the presence of this pest in Kosovo, Slovakia, the Czech Republic, the United Kingdom and Denmark, as well as on other host plants such as quince, common pear and firethorn. Morphological characteristics and DNA sequencing were used to identify the presence of this pest in five additional regions in Europe.
PLANT PROTECTION SCIENCE
(2021)
Review
Biotechnology & Applied Microbiology
Xueqing He, Lars Podenphant Kiaer, Per Moestrup Jensen, Lene Sigsgaard
Summary: Floral resources play a significant role in supporting predatory arthropods, especially in prolonging their longevity. Whole flowers and sugar solution have the most obvious effects on increasing predator longevity. Pollen can also extend predator longevity, but is less effective than sugar solution and flowers. Accessibility may be a key factor in determining the effectiveness of flowers in supporting predator longevity.
BIOLOGICAL CONTROL
(2021)
Article
Entomology
Helene Nielsen, Lene Sigsgaard, Sverre Kobro, Nauja L. Jensen, Stine K. Jacobsen
Summary: This study identified the species of thrips present in two strawberry cultivars at a commercial farm in Denmark, with Frankliniella intonsa and Thrips tabaci being the most abundant. Thrips abundance peaked in July, with the earlier flowering cultivar having higher infestation rates. Understanding thrips species composition is crucial for effective management in protected strawberry production.
Article
Entomology
Liv Linea Holm, Xueqing He, Lene Sigsgaard
Summary: The study found that supplementing a floral diet to a limited prey diet had a significant positive impact on the survival and development of Adalia bipunctata larvae, with a 6x higher survival ratio and 25% shorter developmental time. This indicates that incorporating flowers in cropping systems can enhance biocontrol services provided by A. bipunctata.
ENTOMOLOGIA EXPERIMENTALIS ET APPLICATA
(2021)
Article
Biodiversity Conservation
Aurelie Cardona, Marc Tchamitchian, Servane Penvern, Arnaud Dufils, Stine Kramer Jacobsen, Maren Korsgaard, Mario Porcel, Weronika Swiergiel, Marco Tasin, Francois Warlop, Lene Sigsgaard
Summary: The study reveals that farmers have different perceptions and uses of functional biodiversity, including attitudes of wait-and-see, naturalist, regulation, and multifunctional. These attitudes help in designing monitoring programs tailored to various uses and targeted services.
ECOLOGICAL INDICATORS
(2021)
Article
Biodiversity Conservation
Stine K. Jacobsen, Lene Sigsgaard, Anna B. Johansen, Kristian Thorup-Kristensen, Per M. Jensen
Summary: The present study investigated the ground-dwelling predatory community in cereal fields with different levels of soil disturbance and found that reducing tillage can support local predatory arthropod communities, enhancing the resilience and diversity of agricultural ecosystems. This has important implications for insect conservation.
JOURNAL OF INSECT CONSERVATION
(2022)
Article
Biodiversity Conservation
Carina R. Lalyer, Lene Sigsgaard, Bernd Giese
Summary: Research on synthetic gene drives is ongoing to investigate their confinable and reversible nature, as well as their efficacy under realistic conditions. Prospective assessment is necessary due to the potential irreversible intervention into ecosystems.
GLOBAL ECOLOGY AND CONSERVATION
(2021)
Article
Agronomy
Stine K. Jacobsen, Helle Sorensen, Lene Sigsgaard
Summary: Perennial flower strips can effectively promote the occurrence of natural enemies, reduce infestation by pests, and damage to fruits. More predators were observed near the flower strips in orchards, and their presence decreased with distance, positively affecting predator diversity.
Article
Biotechnology & Applied Microbiology
Pablo Lopez Carretero, Apostolos Pekas, Lars Stubsgaard, Gonzalo Sancho Blanco, Henrik Lutken, Lene Sigsgaard
Summary: This study investigates the impact of cannabis trichomes on the mobility and interaction of predators and prey in medicinal cannabis. The results show that the activity and interaction of predators vary on different parts of cannabis plants. These findings provide guidance for biological control programs in medicinal cannabis.
BIOLOGICAL CONTROL
(2022)
Article
Biotechnology & Applied Microbiology
Nimra Musaqaf, Lene Sigsgaard, Bo Markussen, Johan A. Stenberg
Summary: This study investigated the impact of plant genotype diversity and specific resistance traits on the community structure of aphids and predators using wild woodland strawberry populations. The results showed that susceptible plots with high genotypic diversity had higher abundance of specialist aphids, while plots with a mix of resistant and susceptible plants and high genotypic diversity had higher abundance of generalist aphids. Anthocorid predators also had higher population densities in strawberry plots with high genotypic diversity.
BIOLOGICAL CONTROL
(2022)
Article
Agronomy
Nimra Musaqaf, Hans Jorgen Lyngs Jorgensen, Lene Sigsgaard
Summary: Damage to a host plant caused by insect herbivory and pathogens induces defense responses in the plant. Hemipterans and pathogens induce similar specific responses, reducing the severity of pathogen attack. Hemipteran predators can also induce plant resistance against insect herbivory. Research shows that releasing hemipteran predators can lead to induced resistance against subsequent attackers.
Article
Agronomy
Emily Bick, Lene Sigsgaard, Martin T. Torrance, Salena Helmreich, Laurence Still, Brittany Beck, Rami El Rashid, Jesper Lemmich, Thomas Nikolajsen, Samantha M. Cook
Summary: This study explored the spatial and temporal dynamics of pollen beetle immigration into oilseed rape fields in Denmark and the UK, and found that optical sensors were the most efficient monitoring method. The aggregation pattern of pollen beetles after immigration can be used for precise control in oilseed rape crops.
PEST MANAGEMENT SCIENCE
(2023)
