Lethal and sublethal effect of heat shock on Phenacoccus solenopsis Tinsley (Hemiptera: Pseudococcidae)

Waqas, Muhammad; Elabasy, Asem Saad Saad; Shoaib, Ali; Cheng, Xinlai; Zhang, Qianqian; Shi, Zhanjie

doi:10.1016/j.jtherbio.2020.102679

Cited by 7 publications

(6 citation statements)

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“…In the present study, temperature stress significantly influenced the activities of antioxidant enzymes in insects. The overall activity of CAT, POD and SOD increased with period of exposure to ambient temperature in all the populations of P. solenopsis (Waqas et al, 2020b;Shankarganesh et al, 2020). The CAT activity increased at 40°C as compared to control.…”

Section: Resultsmentioning

confidence: 85%

Antioxidant Enzymes in Cotton Mealy Bug <i>Phenacoccus Solenopsis</i> Tinsley Exposed to High Temperature

Shankarganesh

Rameash

Selvi

et al. 2022

ije

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Effect of high temperature on the antioxidant enzymes catalase (CAT), superoxide dismutase (SOD) and peroxidases (POD) in the third instar of Phenacoccus solenopsis was studied under laboratory condition. Temperature influences the level of antioxidant enzymes with exposure to high temperature (400C). There was a marked rise in catalase activity and the maximum activity (0.399 nmol/ min/ mg) was observed after 6 hr in Bhatinda population. Irrespective of the population, the activity of peroxidase was positively correlated with time of exposure, and maximum activity was observed in Sri Ganganagar (0.218 nmol/ min/ mg) population at 6 hr of exposure. Within the 3 hr of exposure the maximum activity of SOD (0.127 μM/ min /mg) was observed in Rajkot and at 4 hr (0.060± 0.019 μM/ min /mg) in Sri Ganganagar populations. With further increase in the period of exposure, significant reduction in the activity of SOD was observed, and it was maximum in Guntur populations (0.218 μM/ min/ mg) at 6 hr of exposure. Thus, the findings suggest that the exposure of mealybug to high temperature induce oxidative stress in P. solenopsis. In all the population high temperature stress induces the activity of antioxidant enzymes to overcome the oxidative cell damage in mealy bug.

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Section: Resultsmentioning

confidence: 85%

Antioxidant Enzymes in Cotton Mealy Bug <i>Phenacoccus Solenopsis</i> Tinsley Exposed to High Temperature

Shankarganesh

Rameash

Selvi

et al. 2022

ije

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“…At present, compared with more reports focusing on the impact of high temperature on the distribution [ 3 , 13 , 23 , 32 ], survival [ 15 ], development [ 16 , 17 ], and reproduction [ 17 , 24 ] of P. solenopsis and its parasitoid, there are relatively few reports on morphological characteristics. Phenotype is the result of the interaction of genetic factors and environmental factors (biological and abiotic).…”

Section: Discussionmentioning

confidence: 99%

“…In some countries, this mealybug causes severe economic damage to cotton and to a wide range of vegetables, horticultural plants and other field crops [ 14 ]. At present, many studies have reported the effects of temperature on the survival rate [ 15 ], development [ 16 ], and reproduction [ 17 ] of P. solenopsis . These studies showed that P. solenopsis had strong temperature adaptability [ 18 ].…”

Section: Introductionmentioning

confidence: 99%

The Effects of Temperature on the Development, Morphology, and Fecundity of Aenasius bambawalei (=Aenasius arizonensis)

Zhang¹,

Tang²,

Huang

2021

Insects

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The effects of high temperature on the developmental, morphological, and fecundity characteristics of insects, including biological invaders and their accompanying natural enemies, are clear. Phenacoccus solenopsis (Homoptera: Pseudococcidae) is an aggressive invasive insect pest worldwide. Aenasius bambawalei (=Aenasius arizonensis Girault) (Hymenoptera: Encyrtidae) is a predominant accompanying parasitoid of this mealybug. Our previous studies showed that temperature change induced an increase in the female offspring ratio of A. bambawalei. However, whether this increase is the result of a shortened or enhanced development period of the reproductive systems of A. bambawalei remains unknown. Here, we compared the pupal development, hind tibia of female adults, and fecundity of A. bambawalei under different temperatures to clarify the development and morphological changes induced by high temperature and to better understand its potential as an accompanying natural enemy. Our results showed that, at a high temperature (36 °C), the pupal developmental duration of A. bambawalei was only 0.80 times that of the control, and the length of the hind tibia was 1.16 times that of the control. Moreover, high temperature accelerated the developmental rate of gonads and increased the numbers of eggs and sperm. These results indicated that experimental warming shortened the pupal developmental duration, altered the hind tibia length of female adults, and facilitated the fecundity of A. bambawalei. These findings will help to understand the adaptation mechanisms of accompanying natural enemies. Furthermore, these findings will help to make use of this behavior to effectively control invasive pests.

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“…Excessive ROS will destroy the fluidity of cell membrane, cause cell apoptosis, and lead to lipid peroxidation [ 6 ]. Many studies have confirmed that antioxidant enzymes in insects were the most important part of the reactive oxygen species scavenging system, which could alleviate the oxidative damage caused by ROS [ 7 , 8 , 9 ]. Superoxide dismutase (SOD) was the first line of defense for insects to resist oxidation.…”

Section: Introductionmentioning

confidence: 99%

Differential Antioxidant Enzyme Gene Expression and Functional Analysis of Pyridaben-Susceptible and -Resistant Strains of Tetranychus truncatus (Acari: Tetranychidae) under High Temperature Stress

Song,

Yu,

et al. 2024

Insects

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Tetranychus truncatus (Acari: Tetranychidae) has caused serious economic losses on some crops (soybean, corn, and cotton) in China, and has developed resistance to most acaricides. Our laboratory study found that T. truncatus was resistant to pyridaben and also adapted to high temperature (34–40 °C). High temperature stress may cause arthropods to produce a large amount of reactive oxygen species (ROS), causing oxidative damage. Antioxidant enzymes, as the main antioxidants, can reduce the damage caused by excessive ROS in arthropods. In order to study the adaptation mechanism of the pyridaben-resistant strain of T. truncatus to high temperature and the role of antioxidant enzyme genes under high temperature stress, four antioxidant enzyme genes, TtSOD, TtPOD3, TtPOD4, and TtGSTs2, were screened according to the transcriptome sequencing data of pyridaben-susceptible and -resistant strains in T. truncatus. Firstly, the phylogeny and structure analyses of these four genes were carried out. Then, real-time quantitative PCR (RT-qPCR) technology was used to analyze the gene expression patterns of antioxidant enzymes in two strains of T. truncatus at three different high temperature ranges (34 °C, 38 °C, and 42 °C). The results showed that the expression levels of four antioxidant enzyme genes of two strains of T. truncatus were induced by high temperature stress, and the expression levels of antioxidant enzyme genes were significantly different in each development state. The gene expression of antioxidant enzyme genes in resistant strains at the adult stage was significantly higher than that in susceptible strains. After the TtSOD and TtPOD4 genes of adult mites of the resistant strain were silenced by RNA interference (RNAi) technology, the mortality rate of mites with TtPOD4 gene silencing reached 41.11% after 96 h at 34 °C, which was significantly higher than that of the control and TtSOD gene silencing. It has been confirmed that the TtPOD4 gene plays a key role in the adaptation of pyridaben-resistant strain of T. truncatus to high temperature. It lays a theoretical foundation for revealing the thermal adaptation mechanism of T. truncatus.

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Lethal and sublethal effect of heat shock on Phenacoccus solenopsis Tinsley (Hemiptera: Pseudococcidae)

Cited by 7 publications

References 50 publications

Antioxidant Enzymes in Cotton Mealy Bug <i>Phenacoccus Solenopsis</i> Tinsley Exposed to High Temperature

Antioxidant Enzymes in Cotton Mealy Bug <i>Phenacoccus Solenopsis</i> Tinsley Exposed to High Temperature

The Effects of Temperature on the Development, Morphology, and Fecundity of Aenasius bambawalei (=Aenasius arizonensis)

Differential Antioxidant Enzyme Gene Expression and Functional Analysis of Pyridaben-Susceptible and -Resistant Strains of Tetranychus truncatus (Acari: Tetranychidae) under High Temperature Stress

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