The Diversity and Dynamics of Fungi in Dryocosmus kuriphilus Community

Yang, Xiaohui; Li, Xiangmei; Zhu, Dao‐Hong; Zeng, Yang; Zhao, Lvquan

doi:10.3390/insects12050426

Cited by 5 publications

(2 citation statements)

References 73 publications

(92 reference statements)

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“…Furthermore, several reports have shown that auxins and cytokinins participate in plant defense responses to pathogen infections [25]. Some studies have confirmed the differences of fungal community structure between the galled tissues of host plants and insect galls including cynipid galls [26,27], midge galls [28] and aphid galls [29]. To date, little information has been published on the differences of bacterial community structure between insect galls and the galled tissues of host plants.…”

Section: Introductionmentioning

confidence: 99%

Comparison of Auxin and Cytokinins Concentrations, and the Structure of Bacterial Community between Host Twigs and Lithosaphonecrus arcoverticus Galls

Yang

Hui

Zhao

et al. 2021

Insects

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Insect galls are the abnormal growth of plant tissues induced by a wide variety of galling insects and characterized by high concentrations of auxins and cytokinins. It remains unclear whether the auxins and cytokinins affect the bacterial community structure of insect galls. We determined the concentrations of indoleacetic acid (IAA) as an example of auxin, trans-zeatin riboside (tZR) and isopentenyladenine (iP) as cytokinins in Lithosaphonecrus arcoverticus (Hymenoptera: Cynipidae) galls and the galled twigs of Lithocarpus glaber (Fagaceae) using liquid chromatography–tandem mass spectrometry. Moreover, for the first time, we compared the bacterial community structure of L. arcoverticus galls and galled twigs by high-throughput sequencing, and calculated the Spearman correlation and associated degree of significance between the IAA, tZR and iP concentrations and the bacterial community structure. Our results indicated the concentrations of IAA, tZR and iP were higher in L. arcoverticus galls than in galled twigs, and positively correlated with the bacterial community structure of L. arcoverticus galls. We suggest the high concentrations of IAA, tZR and iP may affect the bacterial community structure of L. arcoverticus galls.

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Section: Introductionmentioning

confidence: 99%

Comparison of Auxin and Cytokinins Concentrations, and the Structure of Bacterial Community between Host Twigs and Lithosaphonecrus arcoverticus Galls

Yang

Hui

Zhao

et al. 2021

Insects

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“…cygneicollum and Peniophora meridionalis) came from Longal chestnuts. In a recent work [54], Cur. cygneicollum was found in galled twigs of Castanea molissima.…”

Section: Fungal Species Richness and Diversity Among Chestnut Varietiesmentioning

confidence: 95%

Impact of Cultivar, Processing and Storage on the Mycobiota of European Chestnut Fruits

et al. 2022

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Sweet chestnut fruits are popular fruits commercialized as fresh or processed ready-to-eat products. The major post-harvest problems associated with stored chestnut fruits are fungal rots, which cause major losses in fruit quality. The aims of this work were to determine the incidence, abundance and diversity of rots and fungi in three chestnut varieties (Longal, Judia and Martaínha) of Portugal, collected from an industrial plant, and to identify the stages of storage and processing where fungi and rots are more significant. Thirty-three chestnut samples from the three varieties were collected from different stages of industrial processing. Nuts were internally and externally inspected for damage, infestation and infection, and internal fungi were isolated and molecularly identified. The variety Martaínha was identified as the least susceptible to fungal growth, while Longal was the most susceptible. A high diversity of fungi was detected and identified. The dominant fungi were Mucor racemosus, Penicillium spp. (the causal agents of green rots), Ciboria batschiana (black rot) and Botrytis cinerea (gray rot). Gnomoniopsis smithogilvyi, the causal agent of brown rot, was also frequently detected. Sterilization with hydrothermal bath was effective in the elimination or reduction of most of the rot-causing fungi. These results could serve as a baseline for better monitoring fungal development and chestnut decay, and to develop effective management measures to control post-harvest chestnut rots.

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Fungi associated with necrotic and asymptomatic galls of Dryocosmus kuriphilus (Hymenoptera: Cynipidae) and the adults of its parasitoid Torymus sinensis in chestnut growing areas of Turkey

Çakar,

Akıllı Şimşek,

Maden

2024

Forest Pathology

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The chestnut gall wasp (CGW) Dryocosmus kuriphilus is a serious pest of chestnuts (Castanea sativa) in many chestnut growing areas in Turkey. Out of 200 galls randomly collected from four different areas of Yalova and Giresun provinces, 116 showed necrosis, while 84 were asymptomatic. Fungi associated with the necrotic and asymptomatic galls were determined based on morphology and DNA sequencing. Gnomoniopsis smithogilvyi, Colletotrichum acutatum, Penicillium glabrum, Botrysphaeria dothidea, Trichoderma atroviridea, and Botrytis cinerea were found on 49, 11, 10, 8, 7, and 1 necrotic galls, respectively. On the other hand, G. smithogilvyi, Fusarium proliferatum, Aureobasidium sp., C. godetiae, Rhizopus stolonifer, P. glabrum, C. acutatum, Cladosporium sp., Alternaria spp., and Aspergillus sp. were hosted by 37, 35, 15, 14, 12, 8, 6, 3, 1, and 1 asymptomatic galls, respectively. Seven fungi, G. smithogilvyi, C. acutatum, F. proliferatum, B. dothidea, Cryphonectria parasitica, Diplodina castanea, and Penicillium sp. were isolated from 31, 6, 4, 1, 1, 1, and 1 of the dead larvae of D. kuriphilus, respectively. Two fungi, F. proliferatum and Penicillium sp., were isolated from the adults of Torymus sinensis, a parasitoid of CGW. Pathogenicity of G. smithogilvyi, C. acutatum, and F. proliferatum detected from dead larvae of D. kuriphilus and galls was tested on young chestnut saplings: the former two produced necrosis while the third one did not.

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The Diversity and Dynamics of Fungi in Dryocosmus kuriphilus Community

Cited by 5 publications

References 73 publications

Comparison of Auxin and Cytokinins Concentrations, and the Structure of Bacterial Community between Host Twigs and Lithosaphonecrus arcoverticus Galls

Comparison of Auxin and Cytokinins Concentrations, and the Structure of Bacterial Community between Host Twigs and Lithosaphonecrus arcoverticus Galls

Impact of Cultivar, Processing and Storage on the Mycobiota of European Chestnut Fruits

Fungi associated with necrotic and asymptomatic galls of Dryocosmus kuriphilus (Hymenoptera: Cynipidae) and the adults of its parasitoid Torymus sinensis in chestnut growing areas of Turkey

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