Sphingolipid composition and metabolism differ in three auchenorrhynchous pests of rice

Zhang, Minjing; Shi, Xiaoxiao; Bai, Ye; Zhou, Wenwu; Zhu, Zhiliang

doi:10.1016/j.aspen.2021.06.013

Cited by 3 publications

(3 citation statements)

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“…Similar to C. lividipennis, the nCDase and alCDase of Drosophila (CDase and Dacer) were reported, whereas no aCDase homologs have been identified (Yoshimura et al, 2002;Acharya and Acharya, 2005;Yuan et al, 2011). The nCDase and alCDase were also reported in the hemipteran insect Laodelphax striatellus (Zhou et al, 2013;Zhang et al, 2021). The phylogenetic analysis demonstrated that CDases are highly conserved between insects, while the biological function of different type CDases vary among different insect species.…”

Section: Discussionmentioning

confidence: 96%

“…Five CDase homologs genes have been identified from humans, including one aCDase, one nCDase, and three alCDases ( Coant et al, 2017 ). Two CDases were found in the hemipteran insect Nephotettix cincticeps ( Zhang et al, 2021 ). Similar to C. lividipenni s, the nCDase and alCDase of Drosophila (CDase and Dacer) were reported, whereas no aCDase homologs have been identified ( Yoshimura et al, 2002 ; Acharya and Acharya, 2005 ; Yuan et al, 2011 ).…”

Section: Discussionmentioning

confidence: 99%

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Alkaline ceramidase (ClAC) inhibition enhances heat stress response in Cyrtorhinus lividipennis (Reuter)

et al. 2023

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Ceramidases (CDases) are vital sphingolipid enzymes involved in organismal growth and development. They have been reported as key mediators of thermal stress response. However, whether and how CDase responds to heat stress in insects remain unclear. Herein, we identified two CDase genes, C. lividipennis alkaline ceramidase (ClAC) and neutral ceramidase (ClNC), by searching the transcriptome and genome databases of the mirid bug, Cyrtorhinus lividipennis, an important natural predator of planthoppers. Quantitative PCR (qPCR) analysis showed that both ClNC and ClAC were highly expressed in nymphs than in adults. ClAC was especially highly expressed in the head, thorax, and legs, while ClNC was widely expressed in the tested organs. Only the ClAC transcription was significantly affected by heat stress. Knocking down ClAC increased the C. lividipennis nymph survival rate under heat stress. The transcriptome and lipidomics data showed that the RNA interference-mediated suppression of ClAC significantly upregulated the transcription level of catalase (CAT) and the content of long-chain base ceramides, including C16-, C18-, C24-, and C31- ceramides. In C. lividipennis nymphs, ClAC played an important role in heat stress response, and the upregulation of nymph survival rate might be caused by variation in the ceramide levels and transcriptional changes in CDase downstream genes. This study improves our understanding of the physiological functions of insect CDase under heat stress and provides valuable insights into the nature enemy application.

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Section: Discussionmentioning

confidence: 96%

Section: Discussionmentioning

confidence: 99%

Alkaline ceramidase (ClAC) inhibition enhances heat stress response in Cyrtorhinus lividipennis (Reuter)

et al. 2023

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“…Sphingolipid metabolism is closely linked to organism survival and reproduction. Ceramide is located at the center of sphingolipid metabolism [ 58 ]; studies have shown that abnormal accumulation of ceramide can negatively impact insect reproduction, particularly affecting female adults of N. lugens . This abnormal accumulation results in delayed maturation of oocytes, decreased oviposition, and diminished offspring survival rate [ 59 ].…”

Section: Discussionmentioning

confidence: 99%

Chromosome-Level Genome Assembly of Apoderus dimidiatus Voss (Coleoptera: Attelabidae): Insights into Evolution and Behavior

Xie,

Yao,

Feng

et al. 2024

Insects

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Attelabidae insects have attracted much attention due to their unique leaf rolling behavior before oviposition. However, the lack of genomic data makes it difficult to understand the molecular mechanism behind their behavior and their evolutionary relationship with other species. To address this gap, we utilized Illumina and Nanopore sequencing platforms along with Hi-C technology to establish a highly accurate whole genome of A. dimidiatus at the chromosome level. The resulting genome size was determined to be 619.26 Mb, with a contig N50 of 50.89 Mb and GC content of 33.89%. Moreover, a total of 12,572 genes were identified, with 82.59% being functionally annotated, and 64.78% designated as repeat sequences. Our subsequent phylogenetic tree analysis revealed that Attelabidae’s divergence from Curculionidae occurred approximately 161.52 million years ago. Furthermore, the genome of A. dimidiatus contained 334 expanded gene families and 1718 contracted gene families. In addition, using Phylogenetic Analysis by Maximum Likelihood (PAML), we identified 106 rapidly evolved genes exhibiting significant signals and 540 positively selected genes. Our research endeavors to serve as an invaluable genomic data resource for the study of Attelabidae, offering fresh perspectives for the exploration of its leaf rolling behavior.

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Insect Lipids: Structure, Classification, and Function

Kaczmarek,

Wrońska,

Sobich

et al. 2024

Advances in Experimental Medicine and Biology

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Sphingolipid composition and metabolism differ in three auchenorrhynchous pests of rice

Cited by 3 publications

References 47 publications

Alkaline ceramidase (ClAC) inhibition enhances heat stress response in Cyrtorhinus lividipennis (Reuter)

Alkaline ceramidase (ClAC) inhibition enhances heat stress response in Cyrtorhinus lividipennis (Reuter)

Chromosome-Level Genome Assembly of Apoderus dimidiatus Voss (Coleoptera: Attelabidae): Insights into Evolution and Behavior

Insect Lipids: Structure, Classification, and Function

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