Mechanical and Biochemical Defences of Honey Bees

Gliński, Z.; Jarosz, J.

doi:10.1080/0005772x.1995.11099257

Cited by 16 publications

(9 citation statements)

References 26 publications

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“…The initial increase may be due to the release of sessile haemocytes and the activation of mitotic activity of the haemocytes. These results agree with the findings of Glinski and Grazgorczyk (1995) on adult bee workers infected with American foulbrood, Glinski and Jarosz (1995) on bee workers infected with some bacterial spores, Abrol (1996) on larva of A. mellifera and A. cerana indica infected with Tropilaelaps clareae mite, Sarag El-Dien (1999) on bee larvae and workers infected with varroa mite and bacteria and Barakat (2001) on workers of A. mellifera injected with P. aeruginosa.…”

Section: Discussionsupporting

confidence: 82%

Qualitative and Quantitative Changes of Haemocytes from Honeybee, Apis mellifera (L.) (Hymenoptera: Apidae) After Intrahaemocoelic Injection with Bacillus thuringiensis

Barakat¹,

Moselhy²,

Shouaib³

et al. 2017

GJBS

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The present work was carried out aiming to characterize the haemocytes from different developmental stages of honeybee, Apis mellifera (L.) after experimental injection of Bacillus thuringiensis (B.t.) into the haemocoel. Six haemocyte types were recognized in pupae: prohaemocytes (PRs), granulocytes (GRs), oenocytoides (OEs), spindle-shaped cells (SPLs), plasmatocytes (PLs), and adipohaemocytes (ADs). Eight types were found in larvae; in addition to the previous mentioned haemocyte types, spherulocytes (SPs) and eosinophil cells (EOs), while ten types were recognized in the adult stage; the previous mentioned eight types plus micronucleocytes (MIs) and macronucleocytes (MAs). Due to bacterial injection, certain pathological consequences were observed in the defined haemocytes such as vacuolization in the cytoplasm, distortion of the cell membrane and pycnosis in the nuclei. Moreover, the differential and total haemocyte counts were found to increased or decreased depending on the developmental stage and the time of haemolymph collection after bacterial injection. Other observed cellular responses against bacterial injection were phagocytosis and nodule formation.

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Section: Discussionsupporting

confidence: 82%

Qualitative and Quantitative Changes of Haemocytes from Honeybee, Apis mellifera (L.) (Hymenoptera: Apidae) After Intrahaemocoelic Injection with Bacillus thuringiensis

Barakat¹,

Moselhy²,

Shouaib³

et al. 2017

GJBS

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“…Insect gut microbiota plays essential role in the growth, development, pathogenesis and environmental adaptation of host insects (Bhat et al 2014). Composition of the digestive microbiota of honey bees is the result of feeding pollen and nectar, but also it is a consequence of interaction among the bees in the hive (Glinski & Jarosz 1995).…”

Section: Fungi Recovered From Guts Of Honey Beesmentioning

confidence: 99%

Yeasts and filamentous fungi inhabiting guts of three insect species in Assiut, Egypt

Moubasher¹

2017

Mycosphere

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This work aimed to evaluate for the first time in Egypt the biodiversity of mycobiota that inhabit the guts of three insect species collected from Assiut Governorate. 50 adult insect samples (28 worker honey bees, 11 black beetles and 11 red palm weevils) were analyzed. 68 species and three varieties were recovered of which 49 species and 2 varieties were filamentous fungi and 19 species + one variety were yeasts. The number of taxa recovered from red-palm weevils and honey bees was almost equal, while lower number was isolated from beetles. However, a higher number of yeast species was obtained from the gut of red-palm weevils than those obtained from honey bees or black beetles. Some filamentous species were recovered from the guts of the three insect species (Aspergillus niger, A. parasiticus, A. terreus, Cladosporium cladosporioides, Penicillium chrysogenum), while others were reported from one or two insect species. However, none of yeast species was regularly recovered from the three insect guts, but two insect species may share the same yeast species in their guts. Other yeast species were restrictedly isolated from guts of one insect species. Some gut samples were fungi-free. To our knowledge, some of the isolated yeast species are being reported here for the first time from insect guts. On the other hand, ITS sequence data from several strains did not match well with those of known described species, and are probably new species.

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“…Haemocytes are of fundamental importance in the preservation of an insect homeostasis, especially in regards of cellular defense reactions and management of nutritional elements (Gliński and Jarosz, 1995). These cells circulating in haemolymph are easily accessible to evaluate an insect homeostasis and analysis of haemocytes enables the estimation of the influence of different external factors, such as pathogens, medicines, pesticides, and environmental pollutants, which all can affect insects homeostasis (Gliński and Grzegorczyk, 1995).…”

Section: Introductionmentioning

confidence: 99%

The influence of different diets on haemocytes of adult worker honey bees, Apis mellifera

Szymaś

Jedruszuk

2003

Apidologie

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-The influence of different diets on the haemolymph of adult honeybee workers was examined. The laboratory experiments took place in early summer. There were three experimental groups fed with one of the following diets: pollen with sugar, pollen substitute alone, or sugar. A sample of haemolymph was taken from 7-8 day old bees and numbers of haemocytes of each type (plasmatocytes, granular haemocytes, and other types of haemocytes pooled together) were recorded and the metabolic activity of haemocytes was observed. A lack of protein caused a significant increase in the percentage of granular haemocytes, a significant decrease of other types and a lower metabolic activity. The examined pollen substitute caused a decrease of total haemocyte count. The decrease in the metabolic activity of haemocytes was lower than without protein.Apis mellifera / diet / haemocyte / adult worker

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Mechanical and Biochemical Defences of Honey Bees

Cited by 16 publications

References 26 publications

Qualitative and Quantitative Changes of Haemocytes from Honeybee, Apis mellifera (L.) (Hymenoptera: Apidae) After Intrahaemocoelic Injection with Bacillus thuringiensis

Qualitative and Quantitative Changes of Haemocytes from Honeybee, Apis mellifera (L.) (Hymenoptera: Apidae) After Intrahaemocoelic Injection with Bacillus thuringiensis

Yeasts and filamentous fungi inhabiting guts of three insect species in Assiut, Egypt

The influence of different diets on haemocytes of adult worker honey bees, Apis mellifera

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