Phylogenetic relationships of Nocardiopsis species based on partial gyrB and 16S rRNA gene sequences

Yang, Ling–Ling; Zhi, Xiao‐Yang; Xu, Li-Hua; Li, Wenjun

doi:10.3209/saj.saj220102

Cited by 5 publications

(1 citation statement)

References 32 publications

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“…The Asian cynipid gall wasp (ACGW) Dryocosmus kuriphilus Yasumatsu (Hymenoptera, Cynipidae) is a serious pest that affects all chestnut tree species in the genus Castanea (Fagales: Fagaceae) (Yasumatsu, 1951;Torii, 1959;Aebi et al, 2006;Abe et al, 2007;Fan & Zhu, 2010). Italy was the first European country to be invaded by ACGW (Brussino et al, 2002;Graziosi & Santi, 2008), although it has subsequently invaded many other countries (EPPO, 2018).…”

Section: Introductionmentioning

confidence: 99%

Environmental thermal levels affect the phenological relationships between the chestnut gall wasp and its parasitoids

2019

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Studies of thermal level‐related asynchrony in a host–parasitoid relationship are necessary to understand the effects of climate change on new host–parasitoid interactions. In the Asian chestnut gall wasp Dryocosmus kuriphilus (Hymenoptera: Cynipidae) and its Chalcidoidea parasitoids, phenological synchrony is assumed to be weather‐dependent in a new area of expansion. To evaluate the effects of environmental thermal regimes on the host, a phenology model for different cynipid stages (larvae, pupae, adults, and adult emergence) and a host–parasitoid phenological estimator are developed in three chestnut fields during two successive growth seasons and subsequently validated in areas with chestnut fields at two different altitudes. Comparisons of the timings of the juvenile and adult stages with those of the parasitoid complex demonstrate that the shortest period of occurrence for cynipids within galls has negative effects on the host–parasitoid relationships at higher temperature levels, thereby increasing phenological asynchrony for some parasitoids species. Reducing the development time of pupae and adults decreases the likelihood of success for some parasitoid species at higher temperature levels. We also record the extension of the gall wasp development time (approximately 15 days) at higher altitudes (linked to a lower mean temperature of approximately 1.5 °C). These results highlight how parasitization on the new hosts is dependent on the host phenology and, in the present study, is limited by the short duration of the presence of the host in galls, which could explain the considerable differences in cynipid gall wasp parasitization recorded at different altimeters.

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Section: Introductionmentioning

confidence: 99%

Environmental thermal levels affect the phenological relationships between the chestnut gall wasp and its parasitoids

2019

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Nocardiopsis

Hozzein¹,

Trujillo²

2015

Bergey's Manual of Systematics of Archaea and Bacteria

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No.car.di.op'sis. N.L. fem. n. Nocardia a genus of the order Actinomycetales ; Gr. fem. n. opsis appearance; N.L. fem. n. Nocardiopsis that which has the appearance of Nocardia . Actinobacteria / Actinobacteria / Streptosporangiales / Nocardiopsaceae / Nocardiopsis Gram‐stain‐positive, aerobic, chemo‐organotrophic, nonacid‐fast , nonmotile filamentous actinomycetes. Substrate mycelium is well developed and hyphae are long and densely branched. Fragmentation into coccoid and bacillary elements may occur . Aerial mycelium is well developed and sparse‐to‐abundant; aerial hyphae are long , branched, straight to flexuous, or irregularly zig‐zagged, completely fragmenting into spores of various lengths. Spore surface is smooth. Wall peptidoglycan contains meso ‐diaminopimelic acid and the muramic acid of the peptidoglycan is acetylated. No diagnostic sugars are found in whole‐organism hydrolysates. Mycolic acids are absent . Major phospholipids are phosphatidylcholine , phosphatidylmethylethanolamine, phosphatidylglycerol, and phosphatidylinositol, with small amounts of diphosphatidylglycerol. Menaquinones are predominantly variably hydrogenated with ten isoprene units ( MK‐10 ), with minor amounts of the MK‐9 and/or MK‐11 series. The main fatty acids are branched and 10‐methyl‐branched fatty acids, 14‐methyl‐heptadecanoic acid, and 14‐methyl‐hexadecanoic acid . Growth temperature range is 10–45°C. Widely distributed in saline and alkaline soils, and found in compost, vegetable matter, indoor environments, and clinical material of animal and human origin. DNA G + C content ( mol %): 64–69. Type species : Nocardiopsis dassonvillei (Brocq‐Rousseu 1904) Meyer 1976, 487 AL .

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Phylum XXVI. Actinobacteria phyl. nov.

Goodfellow¹

2012

Bergey’s Manual® of Systematic Bacteriology

103

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Phylogenetic relationships of Nocardiopsis species based on partial gyrB and 16S rRNA gene sequences

Cited by 5 publications

References 32 publications

Environmental thermal levels affect the phenological relationships between the chestnut gall wasp and its parasitoids

Environmental thermal levels affect the phenological relationships between the chestnut gall wasp and its parasitoids

Nocardiopsis

Phylum XXVI. Actinobacteria phyl. nov.

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