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1. Single-molecule studies illuminate the function of RAD51 paralogs

Author:
Cejka, Petr
Source:
Molecular cell 2021 v.81 no.5 pp. 898-900
ISSN:
1097-2765
Subject:
Nematoda,   etc   ; nucleoproteins; yeasts;     Show all 3 Subjects
Abstract:
... In this issue of Molecular Cell, Roy et al. (2021) and Belan et al. (2021) demonstrate that the yeast and nematode RAD51 paralog complexes function as chaperones to promote the assembly of the RAD51 nucleoprotein filament on RPA-coated ssDNA. ...
DOI:
10.1016/j.molcel.2021.01.037

2. Nematode traits after separate and simultaneous exposure to Polycyclic Aromatic Hydrocarbons (anthracene, pyrene and benzo[a]pyrene) in closed and open microcosms

Author:
Hedfi, Amor; Ben Ali, Manel; Hassan, Montaser M.; Albogami, Bander; Al-Zahrani, Samia S.; Mahmoudi, Ezzeddine; Karachle, Paraskevi K.; Rohal-Lupher, Melissa; Boufahja, Fehmi
Source:
Environmental pollution 2021 v.276 pp. 116759
ISSN:
0269-7491
Subject:
Nematoda,   etc   ; anthracenes; fauna; pollution; toxicity;     Show all 5 Subjects
Abstract:
... The majority of experimental studies carried out to date, regarding the effects of pollutants on meiofauna have been conducted by means of closed systems, and rarely using open ones. The current work explored the impact of three Polycyclic Aromatic Hydrocarbons (PAHs), anthracene, pyrene and benzo[a]pyrene, applied alone or combined, on meiobenthic nematodes using both systems. The results reveale ...
DOI:
10.1016/j.envpol.2021.116759

3. A Novel Lactam Metabolite from Penicillium sclerotium D35

Author:
Liu, T.; Gong, C. L.; Zhao, J.; Dan, D.; Zhang, T. T.; Gao, L. L.; Zhang, Q.
Source:
Chemistry of natural compounds 2021 v.57 no.3 pp. 420-421
ISSN:
0009-3130
Subject:
Nematoda,   etc   ; Penicillium; chemistry; lactams; metabolites;     Show all 5 Subjects
Abstract:
... A novel lactam metabolite, 1-pentyl-8-oxa-3,6-diazabicyclo[3.2.1]octane-2,4,7-trione (1), was isolated from Penicillium sclerotium D35. The structure of the new compound 1 was elucidated by spectroscopic methods, including 1D and 2D NMR data and HR-MS. Compound 1 showed moderate nematode suppression activity with LC₅₀ values of 344.722 mg/L. ...
DOI:
10.1007/s10600-021-03378-y

4. New insights into survival strategies of tardigrades

Author:
Møbjerg, Nadja; Neves, Ricardo Cardoso
Source:
Comparative biochemistry and physiology 2021 v.254 pp. 110890
ISSN:
1095-6433
Subject:
Nematoda,   etc   ; Rotifera; Tardigrada; cryptobiosis; metabolism;     Show all 5 Subjects
Abstract:
... Life is set within a narrow frame of physicochemical factors, yet, some species have adapted to conditions far beyond these constraints. Nature appears to have evolved two principal strategies for living organisms to cope with hostile conditions. One way is to remain active, retaining metabolism through adaptations that enable the organism to match the physiological requirements of environmental c ...
DOI:
10.1016/j.cbpa.2020.110890

5. The relative contribution of non-selection and selection processes in marine benthic assemblages

Author:
Vieira, Danilo Cândido; Gallucci, Fabiane; Corte, Guilherme Nascimento; Checon, Helio Herminio; Zacagnini Amaral, Antônia Cecília; Fonseca, Gustavo
Source:
Marine environmental research 2021 v.163 pp. 105223
ISSN:
0141-1136
Subject:
Nematoda,   etc   ; fauna; rare species; research;     Show all 4 Subjects
Abstract:
... We tested the hypothesis that the ubiquity of marine meiofaunal nematodes and their indiscriminate passive dispersal create assemblages that are less limited by its environment; whereas the relatively smaller population sizes of macrofauna, associated with their ability to track environmental conditions before settlement, renders their distribution more environmentally-restricted. We compared the ...
DOI:
10.1016/j.marenvres.2020.105223

6. Epigenetics in plant organismic interactions

Author:
Ramos-Cruz, Daniela; Troyee, A. Niloya; Becker, Claude
Source:
Current opinion in plant biology 2021 v.61 pp. 102060
ISSN:
1369-5266
Subject:
Nematoda,   etc   ; Oomycetes; epigenetics; immune system; plant biology;     Show all 5 Subjects
Abstract:
... Plants are hubs of organismic interactions. They constantly engage in beneficial or competitive interactions with fungi, oomycetes, bacteria, insects, nematodes, and other plants. To adjust the molecular processes necessary for the establishment and maintenance of beneficial interactions and for the defense against pathogens and herbivores, plants have evolved intricate regulatory mechanisms. Besi ...
DOI:
10.1016/j.pbi.2021.102060

7. Biological activities of essential oils and lipopeptides applied to control plant pests and diseases: a review

Author:
Basaid, Khadija; Chebli, Bouchra; Mayad, El Hassan; Furze, James N.; Bouharroud, Rachid; Krier, François; Barakate, Mustapha; Paulitz, Timothy
Source:
International journal of pest management 2021 v.67 no.2 pp. 155-177
ISSN:
1366-5863
Subject:
Nematoda,   etc   ; biopesticides; lipopeptides; plant protection; synergism;     Show all 5 Subjects
Abstract:
... Plants are often subject to attack by fungi, nematodes and insects, which generate immense yield losses. Hence, the quest for crop protection solutions is ongoing, concurrent with greater awareness towards the use of synthetic chemicals in agricultural practice. Scientific research has shifted towards the use of natural products, which possess good efficacy and are environment friendly. This revie ...
DOI:
10.1080/09670874.2019.1707327

8. Untangling the mechanisms of cryptic species coexistence in a nematode community through individual‐based modelling

Author:
Daly, Aisling J.; De Meester, Nele; Baetens, Jan M.; Moens, Tom; De Baets, Bernard
Source:
Oikos 2021 v.130 no.4 pp. 587-600
ISSN:
0030-1299
Subject:
Nematoda,   etc   ; cryptic species; intraspecific competition; models; reproduction;     Show all 5 Subjects
Abstract:
... Cryptic species are morphologically identical but genetically distinct, and are prominent across numerous phyla. The coexistence of such closely related species on local scales would seem to run counter to traditional coexistence and competition theory; it has been hypothesized as a consequence of differences in their resource use or tolerances to environmental conditions. We developed an individu ...
DOI:
10.1111/oik.07989

9. Description of Prionchulus girchi sp. nov. (Nematoda: Mononchina) with additional data on two known species of the genus Prionchulus from Lorestan province, Iran

Author:
Bazgir, E.; Naghavi, A.; Zolfaghari, Z.
Source:
Helminthologia 2021 v.58 no.1 pp. 85-91
ISSN:
1336-9083
Subject:
Nematoda,   etc   ; body length; ecosystems; mouth; tail; Iran;     Show all 6 Subjects
Abstract:
... Three species of mononchids belonging to the Prionchulus Cobb, 1916 genus, one new and two previously known species collected from natural ecosystem of Khorramabad county, Lorestan province, south west of Iran, are described. Prionchulus girchi sp. nov. is morphologically characterized by its 2.1 – 2.2 mm body length, numerous cuticular pores, slightly offset lip region, prominent labial and cepha ...
DOI:
10.2478/helm-2021-0011

10. Oxygen sensing in crustaceans: functions and mechanisms

Author:
de Lima, Tábata Martins; Nery, Luiz Eduardo Maia; Maciel, Fábio Everton; Ngo-Vu, Hanh; Kozma, Mihika T.; Derby, Charles D.
Source:
Journal of comparative physiology 2021 v.207 no.1 pp. 1-15
ISSN:
0340-7594
Subject:
Nematoda,   etc   ; Crustacea; hyperoxia; hypoxia; metabolism; oxygen; transcriptome;     Show all 7 Subjects
Abstract:
... Animals that live in changing environments need to adjust their metabolism to maintain body functions, and sensing these changing conditions is essential for mediating the short- and long-term physiological and behavioral responses that make these adjustments. Previous research on nematodes and insects facing changing oxygen levels has shown that these animals rapidly respond using atypical solubl ...
DOI:
10.1007/s00359-020-01457-z

11. Spatial Distribution of Invertebrates in the Soils of the Southeastern Part of the Bolshezemelskaya Tundra

Author:
Taskaeva, A. A.; Konakova, T. N.; Kolesnikova, A. A.; Kudrin, A. A.; Panjukov, A. N.; Lapteva, E. M.
Source:
Biology bulletin of the Russian Academy of Sciences 2021 v.48 no.1 pp. 94-102
ISSN:
1062-3590
Subject:
Nematoda,   etc   ; Russia; body size; soil; tundra;     Show all 5 Subjects
Abstract:
... A characterization of the spatial distribution of soil biota (nematodes, microarthropods, large soil invertebrates) in plant communities of the southeastern sector of the Bolshezemelskaya tundra (Komi Republic, environs of Vorkuta) is given. For all groups of soil invertebrates studied, an aggregated distribution was noted, in which the body size of the organism plays a certain role. It is shown t ...
DOI:
10.1134/S1062359021010143

12. Engineering healthy crops: molecular strategies for enhancing the plant immune system

Author:
Frailie, Tyler B; Innes, Roger W
Source:
Current opinion in biotechnology 2021 v.70 pp. 151-157
ISSN:
0958-1669
Subject:
Nematoda,   etc   ; biotechnology; disease resistance; genome; immune system; virulence;     Show all 6 Subjects
Abstract:
... Crop diseases caused by viruses, bacteria, fungi, oomycetes and nematodes constitute major costs for farmers in terms of control measures and yield losses. Enhancing resistance to these pathogens via genetic modification or genome editing represents an economically and environmentally attractive path forward. Recent advances in our understanding of how plants detect pathogens and activate immune r ...
DOI:
10.1016/j.copbio.2021.04.006

13. Recent advances in the bioprospection and applications of chitinolytic bacteria for valorization of waste chitin

Author:
Dhole, Neeraja P.; Dar, Mudasir A.; Pandit, Radhakrishna S.
Source:
Archives of microbiology 2021 v.203 no.5 pp. 1953-1969
ISSN:
0302-8933
Subject:
Nematoda,   etc   ; biodegradation; biomedical research; biopolymers; biorefining; chitin; chitinase; wastes;     Show all 8 Subjects
Abstract:
... One of the most abundant natural polymers on earth, chitin is a fibrous and structural polysaccharide, composed of N-acetyl-D-glucosamine. The biopolymer is the major structural constituent of fungi, arthropods, mollusks, nematodes, and some algae. The biodegradation of chitin is largely manifested by chitinolytic enzyme secreting organisms including bacteria, insects, and plants. Among them, bact ...
DOI:
10.1007/s00203-021-02234-5

14. Co-occurrence of Eutrombicula alfreddugesi and Oswaldofilaria chabaudi in Tropidurus torquatus and first report of microfilariae in the chigger mite: possible evidence of a lifecycle pathway?

Author:
Alves, P.V.; Gomides, S.C.; Pereira, F.B.
ISSN:
1475-2697
Subject:
Nematoda,   etc   ; Eutrombicula; adults; chiggers; filariasis; lizards; microfilariae; wildlife; Brazil;     Show all 9 Subjects
Abstract:
... While much attention has been paid to vector-borne filariasis, diseases that threaten millions of people in tropical and subtropical countries, the literature on host–parasite associations and transmission strategies of filarial nematodes in wildlife is scarce. Here, we report the co-occurrence of chigger mites (Eutrombicula alfreddugesi) and onchocercid nematodes (Oswaldofilaria chabaudi) parasit ...
DOI:
10.1017/S0022149X21000158

15. New Trends in Disease and Pest Management: Challenges and Opportunities

Author:
González-Domínguez, Elisa; Monzó, César; Vicent, Antonio
Source:
Agronomy 2021 v.11 no.5
ISSN:
2073-4395
Subject:
Nematoda,   etc   ; Oomycetes; agronomy; disease and pest management; horticulture;     Show all 5 Subjects
Abstract:
... Horticultural and field crops are affected by a number of pests and diseases caused by arthropods, bacteria, fungi, oomycetes, viruses, virus-like organisms, and nematodes [...] ...
DOI:
10.3390/agronomy11050923

16. Comparison of benthic nematode assemblages in native mangrove forest and exotic mangrove plantations (Sonneratia apetala Buch-Ham) along the South China Coast

Author:
Fu, Sujing; Rao, Yiyong; Chen, Xinwei; Zhou, Xiping; Wu, Chen; Li, Xiang; Peng, Wenqing; Cai, Lizhe
Source:
Marine pollution bulletin 2021 v.166 pp. 112249
ISSN:
0025-326X
Subject:
Nematoda,   etc   ; ; Sonneratia apetala; coasts; intercropping; mangrove forests; marine pollution; China;     Show all 8 Subjects
Abstract:
... The exotic mangrove species Sonneratia apetala has been planted widely in China since 1985. As an exotic mangrove species, it is important to understand the influence of Sonneratia plantations on marine nematode assemblages. We studied the Zhanjiang and Xiatanwei mangrove wetlands on the South China Coast during the four seasons of 2010 and 2019. The results showed that S. apetala plantations incr ...
DOI:
10.1016/j.marpolbul.2021.112249

17. NemChR-DB: a database of parasitic nematode chemosensory G-protein coupled receptors

Author:
Langeland, Andrea; Hawdon, John M.; O'Halloran, Damien M.
Source:
International journal for parasitology 2021 v.51 no.5 pp. 333-337
ISSN:
0020-7519
Subject:
Nematoda,   etc   ; G-proteins; chemoreceptors; databases; host seeking; host specificity; parasitology;     Show all 7 Subjects
Abstract:
... Nematode Chemosensory G-Protein Coupled Receptors have expanded within nematodes, where they play important roles in foraging and host-seeking behaviour. Nematode Chemosensory G-Protein Coupled Receptors are most highly expressed during free-living stages when chemosensory signalling is required for host detection and nematode activation in various parasitic nematodes, and therefore position Nemat ...
DOI:
10.1016/j.ijpara.2020.09.007

18. Relationship between Wolbachia infection in Culex quinquefasciatus and its resistance to insecticide

Author:
Shemshadian, Atieh; Vatandoost, Hassan; Oshaghi, Mohammad Ali; Abai, Mohammad Reza; Djadid, Navid Dinparast; karimian, Fateh
Source:
Heliyon 2021 v.7 no.4 pp. e06749
ISSN:
2405-8440
Subject:
Nematoda,   etc   ; Culex quinquefasciatus; Wolbachia; deltamethrin; endosymbionts; guidelines; insecticide resistance; tetracycline;     Show all 8 Subjects
Abstract:
... Many studies have been done on the various factors affecting resistance to insecticides. The relationship between Wolbachia bacteria and resistance to insecticides is one of the factors that has attracted a lot of attentions. Wolbachia are obligatory intracellular endosymbionts that naturally occur in a wide range of arthropods and nematodes, including the mosquito Culex quinquefasciatus.Initially ...
DOI:
10.1016/j.heliyon.2021.e06749

19. First Assessment of the Benthic Meiofauna Sensitivity to Low Human-Impacted Mangroves in French Guiana

Author:
Michelet, Claire; Zeppilli, Daniela; Hubas, Cédric; Baldrighi, Elisa; Cuny, Philippe; Dirberg, Guillaume; Militon, Cécile; Walcker, Romain; Lamy, Dominique; Jézéquel, Ronan; Receveur, Justine; Gilbert, Franck; Houssainy, Amonda El; Dufour, Aurélie; Heimbürger-Boavida, Lars-Eric; Bihannic, Isabelle; Sylvi, Léa; Vivier, Baptiste; Michaud, Emma
Source:
Forests 2021 v.12 no.3
ISSN:
1999-4907
Subject:
Nematoda,   etc   ; Retaria; ecosystems; epibionts; fauna; sediments; toxicity; French Guiana;     Show all 8 Subjects
Abstract:
... Bioindicators assess the mangroves ecological state according to the types of pressures but they differ with the ecosystem’s specificities. We investigated benthic meiofauna diversity and structure within the low human-impacted mangroves in French Guiana (South America) in response to sediment variables with various distances to the main city. Contaminant’s concentrations differed among the statio ...
DOI:
10.3390/f12030338

20. Evaluation of the Baermann–Wetzel method for detecting lungworm larvae in wild ruminants from faecal samples

Author:
Carrau, T.; Martínez-Carrasco, C.; Garijo, M.M.; Alonso, F.; Ruiz de Ybáñez, R.; Tizzani, P.
ISSN:
1475-2697
Subject:
Nematoda,   etc   ; cost effectiveness; feces; lungworms; parenchyma (animal tissue); ruminants;     Show all 6 Subjects
Abstract:
... Lungworms can exert a negative impact on wild ruminant fitness; for this reason, the diagnosis of the associated diseases is an important prevention measure. The Baerman–Wetzel technique is the most usual method for the diagnosis of bronchopulmonary nematodes and is based on the active migration and movement of their first-stage larvae. Pulmonary tissue samples are frequently used for the post-mor ...
DOI:
10.1017/S0022149X21000067