Interaction of Dicladispa armigera (Coleoptera: Chrysomelidae) haemocytes with Beauveria bassiana

Phukan, Moushumi; Hazarika, L. K.; Barooah, Madhumita; Puzari, K. C.; Kalita, Surajit

doi:10.1017/s1742758408004049

Cited by 10 publications

(6 citation statements)

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“…Our study also observed this phenomenon. At 12 hpi, GR became to accumulate, multipolar filopodial pseudopods elongated, and PL showed a high spreading rate, and these activities determine phagocytosis or early encapsulation 20,55,56 . Effects of host plants on hemocyte morphology were not observed before, but by the scanning electron microscope we found that the percentage of PL‐spreading was the highest and filopodial pseudopods of GR appeared earliest on I. aquatica than the three other diets.…”

Section: Discussionmentioning

confidence: 68%

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Plants impact cellular immunity of caterpillars to an entomovirus

Wang

Zhang

Siemann

et al. 2021

Pest Management Science

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BACKGROUND Tri‐trophic interactions among plants, insect herbivores and entomopathogens are one of the hot topics in ecology. Although plants have been shown to impact the interactions between herbivores and entomopathogens, it is still unclear how plants affect the cellular immunity of herbivores to entomopathogens. RESULTS The number of hemocytes and the proportion of two main cell types (granular hemocytes and plasmatocytes), plasmatocyte‐spreading rate, apoptosis rate, two Spodoptera exigua caspase (SeCasp‐1, SeCasp‐5) activities and gene expressions were all higher and the activities and gene expression of S. exigua inhibitor of apoptosis protein (SeIAP) were lower in nucleopolyhedrovirus (NPV)‐infected caterpillars fed Ipomoea aquatica than those fed other plants or artificial diet. Scanning electron microscopy images were consistent with molecular patterns of immune responses. CONCLUSION This study suggests that host plants affect the immune responses of herbivores to entomopathogens by manipulating the composition, morphology and apoptosis of herbivore hemocytes, which sheds light on the mechanisms that allow host plants to influence multi‐trophic interactions. © 2021 Society of Chemical Industry

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Section: Discussionmentioning

confidence: 68%

“…Several studies have indicated that entomopathogens can trigger the immune response of herbivores. For instance, Phukan et al 20 . found that Beauveria bassiana infection led to a decrease in the total number of hemocyte cells in beetles.…”

Section: Introductionmentioning

confidence: 99%

Plants impact cellular immunity of caterpillars to an entomovirus

Wang

Zhang

Siemann

et al. 2021

Pest Management Science

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“…Giglio et al (2008) observed four morpho-types of haemocytes in the ground beetle Carabus (Chaetocarabus) lefebvrei. Also, four types of haemocytes were identified in the rice hispa beetle Dicladispa armigera: PRs, PLs, GRs and SPs (Phukan et al, 2008). On the other hand, five types of circulating hemocytes were observed in the elm leaf beetle Xanthogaleruca luteola: PRs, PLs, GRs, OEs and SPs (Kohan et al, 2012).…”

Section: Variable Hemocytes In Selected Economic Insectsmentioning

confidence: 99%

“…Sabri and Tariq (2004) determined THC of the red pumpkin beetle Aulacophora foveicollis in 4372 cells/mm 3 . In the healthy adults of the rice hispa beetle Dicladispa armigera, the THC varied between 5055 and 5950cells/mm 3 (Phukan et al, 2008). Jalali and Salehi (2008) recorded the THC in 2 nd instar larvae of P. demoleus as 2008.0cells/mm 3 , in 4 th instar larvae as 9244.0/ mm 3 , in the late prepupae as 12326cells/mm 3 and in newly formed pupae as 6688cells/ mm 3 .…”

Section: Variation Of Total Hemocyte Populationmentioning

confidence: 99%

Characterization of Qualitative and Quantitative Haemogram Parameters in Insects: Current Concepts and Future Prospects.

Ghoneim

2019

Egyptian Academic Journal of Biological Sciences. A, Entomology

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physiological functions, as previously mentioned. 2.1. Variation in Number and Types of Circulating Hemocytes: It is interesting to give some historical information about the hemocyte classification and characterization. Hollande (1911) firstly attempted to classify and categorize the insect hemocytes after the earlier research works, particularly those of Cuenot (1897) and Kollmann (1908). Then, Wigglesworth (1939) followed each of Hollande's categories. Yeager (1945) identified ten hemocyte classes containing 32 different types in the Southern armyworm Prodenia eridania. Some years later, Jones (1962) reduced this number to nine distinct cell types, and his generalizing work earned a special place in the history of hemocytes, since his classification was the basis used by most researchers thereafter. The same author described eight hemocyte types in insects: PRs, PLs, GRs, Cystocytes (CCs), OEs, ADs, Podocytes (POs), and Vermiform cells (VRs). With this classification, this author established a system to give an order to more than 70 names for hemocyte types used by earlier investigators. Later, Price and Ratcliffe (1974) examined the hemocytes of 15 representative insect orders and distinguished six different types distributed in those orders: PRs, PLs, GRs, spherulocytes (SPs), CCs and OEs; however, CCs were absent in Lepidoptera. Using phase contrast microscopy, Sharma and Dutta (1979) recorded the presence of ten categories of hemocytes: PRs, PLs, GRs, CCs, COs, SPs, ADs, OEs, POs and VRs in the grasshoppers Chrotogonus trachypterus and Acrida exaltata. Although, Gupta (1979) recognized seven main types of haemocytes in various insect orders, namely PRs, PLs, GRs, SPs, ADs, OEs and Coagulocytes (CGs), while Gupta (1994) merged the category CGs with that of GRs. Although Brehelin and Zachary (1986) proposed a new system with nine hemocyte types, the classified categories of haemocytes ranged, generally, from four to seven (Gupta, 1979) or between three and nine (Wigglesworth, 1959; Arnold, 1972, 1974). However, some authors described three to eight hemocyte types in several insect orders by means of the transmission electron microscopy (TEM)(Ratcliffe and Rowley, 1979; Al-Khalifa and Siddiqui, 1985). As reported in the available literature, the main types of hemocytes are PRs, GRs, PLs, SPs and OEs. These hemocyte types have been described in insect species of diverse orders,

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“…However, information is scarce for Coleoptera for which hemocyte identiÞcation and function have only been reported in a few species of Tenebrionidae Rowley 1979, Zhao andWang 1992), Scarabaeidae (Devauchelle 1971, Brehé -lin and Zachary 1986, Giulianini et al 2003, Cucurlionidae (Manachini et al 2011), Chrysomelidae (Phukan et al 2008), andCarabidae (Giglio et al 2008).…”

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confidence: 99%

Immune Response of Harmonia axyridis (Coleoptera: Coccinellidae) Supports the Enemy Release Hypothesis in North America

Firlej¹,

Girard²,

Brehélin³

et al. 2012

Annals of the Entomological Society of America

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The multicolored Asian lady beetle, Harmonia axyridis (Pallas) (Coleoptera: Coccinellidae), is an invasive species in North America that has a low susceptibility to indigenous natural enemies. We investigated the role of the immune system of H. axyridis in its resistance to North American population of the hymenopteran parasitoid Dinocampus coccinellae Schrank. An ultrastructural study of adult H. axyridis hemocytes under electron and light microscopy identified five different cellular types: plasmatocytes, granular hemocytes I, granular hemocytes II, oenocytoids, and spherule cells. Only granular hemocytes II and plasmatocytes are involved in the nodulation of bacteria and encapsulation of parasitoid eggs. Injection of Sephadex beads in H. axyridis adults induces an innate immune response and results in complete encapsulation of ≈28% of the beads after 24 h and 81% after 5 d. When H. axyridis was parasitized by D. coccinellae, we observed a decrease in the encapsulation response, and this pattern was inversely related to the number of parasitoid eggs in the H. axyridis hemolymph. The injection of polydnaviruses by D. coccinellae females and the multiple target hypotheses could both explain the encapsulation rate decreasing with increasing parasitoid egg load. Our results suggest that the immune system of H. axyridis could favor its escape from internal developing natural enemies indigenous to North America.

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Interaction of Dicladispa armigera (Coleoptera: Chrysomelidae) haemocytes with Beauveria bassiana

Cited by 10 publications

References 58 publications

Plants impact cellular immunity of caterpillars to an entomovirus

Plants impact cellular immunity of caterpillars to an entomovirus

Characterization of Qualitative and Quantitative Haemogram Parameters in Insects: Current Concepts and Future Prospects.

Immune Response of Harmonia axyridis (Coleoptera: Coccinellidae) Supports the Enemy Release Hypothesis in North America

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