Effect of sweet flag rhizome oil (Acorus calamus) on hemogram and ultrastructure of hemocytes of the tobacco armyworm, Spodoptera litura (Lepidoptera: Noctuidae)

Sharma, Parduman R.; Sharma, O. P.; Saxena, B. P.

doi:10.1016/j.micron.2007.07.005

Cited by 60 publications

(71 citation statements)

References 23 publications

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“…Sharma et al (2008) also find similar results on effect Artemisia calamus oil on larvae of S. litura as loss of cytoplasmic projections in granular hemocytes. Interestingly, they observed vacuolization in the cytoplasm and degeneration of the organelles, both in plasmatocytes and granular hemocytes (Sharma et al, 2003). So, it was concluded that rapid degeneration of granular hemocytes, initiated by vacuolization and loss of firmness of organelles leading to degranulation and a degenerative transformation within a period of 48 h, subsequently resulting the total collapse of immunity-building mechanism of S. litura (Sharma et al, 2008).…”

Section: Effect Of Botanical Insecticides On Morphology Number Of Hesupporting

confidence: 76%

“…Studies by scan electron microscopy demonstrated the complete loss of filopods in plasmatocytes and cytoplasmic projections in granular hemocytes of S. litura larvae treated with Neem gold (Sharma et al, 2003). Sharma et al (2008) also find similar results on effect Artemisia calamus oil on larvae of S. litura as loss of cytoplasmic projections in granular hemocytes. Interestingly, they observed vacuolization in the cytoplasm and degeneration of the organelles, both in plasmatocytes and granular hemocytes (Sharma et al, 2003).…”

Section: Effect Of Botanical Insecticides On Morphology Number Of Hesupporting

confidence: 61%

“…www.intechopen.com (Orthoptera: Acrididae) (Peter & Ananthakrishnan, 1995) and Spodoptera litura Fabricius (Lepidoptera: Noctuidae) (Sharma et al, 2001(Sharma et al, , 2003(Sharma et al, , 2008. Studies by scan electron microscopy demonstrated the complete loss of filopods in plasmatocytes and cytoplasmic projections in granular hemocytes of S. litura larvae treated with Neem gold (Sharma et al, 2003).…”

Section: Effect Of Botanical Insecticides On Morphology Number Of Hementioning

confidence: 99%

“…Interestingly, they observed vacuolization in the cytoplasm and degeneration of the organelles, both in plasmatocytes and granular hemocytes (Sharma et al, 2003). So, it was concluded that rapid degeneration of granular hemocytes, initiated by vacuolization and loss of firmness of organelles leading to degranulation and a degenerative transformation within a period of 48 h, subsequently resulting the total collapse of immunity-building mechanism of S. litura (Sharma et al, 2008). Atemisia annua extract altered number of hemocytes and their phagocytic activity in Eurygaster integriceps Puton (Hemiptera: Scutelleridae).…”

Section: Effect Of Botanical Insecticides On Morphology Number Of Hementioning

confidence: 99%

See 3 more Smart Citations

Botanical Insecticides and Their Effects on Insect Biochemistry and Immunity

Zibaee¹

2011

Pesticides in the Modern World - Pests Control and Pesticides Exposure and Toxicity Assessment

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Section: Effect Of Botanical Insecticides On Morphology Number Of Hesupporting

confidence: 76%

Section: Effect Of Botanical Insecticides On Morphology Number Of Hesupporting

confidence: 61%

Section: Effect Of Botanical Insecticides On Morphology Number Of Hementioning

confidence: 99%

Section: Effect Of Botanical Insecticides On Morphology Number Of Hementioning

confidence: 99%

See 2 more Smart Citations

Botanical Insecticides and Their Effects on Insect Biochemistry and Immunity

Zibaee¹

2011

Pesticides in the Modern World - Pests Control and Pesticides Exposure and Toxicity Assessment

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“…Rapid haemocyte division to encounter with the nonself oil compounds may enhance THC. Starvation resulting in low haemolymph volume was considered a reason of increasing THC in Prodenia eridenia larva (Rosenberger and Jones, 1960;Sharma et al 2008). The ups and subsequent down regulation of THC level occurring on application of essential oil might suggest an active involvement of the defense system to overcome the toxic action in which the haemocytes in the circulation have been used up for the purpose of defense.…”

Section: Discussionmentioning

confidence: 99%

Effect of Plant Based Essential Oil on Immune Response of Silkworm, Antheraea assama Westwood (Lepidoptera: Saturniidae)

Khanikor¹,

Dipsikha²

2012

International Journal of Industrial Entomology

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Botanicals have been regarded as sustainable solution of pest control because of their nominal effect on nontarget pest, biodegradability and other environment friendly properties. However, study on impact of botanicals against beneficial insects is less. In this investigation effort has been made to study the effect of essential oils of Ocimum sanctum, Ocimum gratissimum and Ageratum conyzoides against non-mulberry silkworm Antheraea assama in terms of percent mortality, total haemocyte count (THC) and phenol oxidase (PO) enzyme activity. After application of essential oil of the plants by contact residual film technique, age dependent decrease of percent mortality was recorded. Topical treatment of oil at higher dosages (1 µlg -1 and 0.5 µlg -1 ) caused 100% mortality of late instar larvae at 24 hour but the lowest dose (0.25 µlg -1 ) did not cause any mortality till 48 hour of treatment. Initial increase of total haemocyte count (THC) was recorded at early hours of treatment (0.25 hour) at all dosages (1, 0.5, 0.25 µlg -1 ) after topical treatment. A dose dependent increase was observed in phenol oxidase enzyme activity and this might indicate ability of the essential oils to cause induction of immune response in Antheraea assama larvae.

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Changes in immune responses of Helicoverpa armigera Hübner followed by feeding on Knotgrass, Polygonum persicaria agglutinin

Rahimi

Hajizadeh

Zibaee

et al. 2019

Arch Insect Biochem Physiol

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There is no study implying the effect of plant lectins on insect immune elements in both challenged and nonchallenged conditions with entomopathogenic agents. Lectins may bind to immune receptors on the surface of insect hemocytes, thus inducing or even disabling common immune functions including hemocyte counts, nodulation/encapsulation, phenoloxidase activity, and synthesis of antimicrobial peptides. In the present study, effect of Polygonum persicaria L. agglutinin (PPA) on immune responses of Helicoverpa armigera Hübner was investigated by feeding artificial diet treated to the larvae. Subsequently hemocyte count and expression of some immune-related genes were considered for analyses. The two groups of larvae including control and PPA-treated (1%) were divided into four subgroups of intact, Tween-80 injected, latex-bead injected and Beauveria bassiana-injected. Except for intact larvae, the highest numbers of total and differential hemocyte counts were recorded 12 hr postinjection, however, the PPA-fed larvae showed a significantly lower hemocyte counts compared to control.The number of nodules in PPA-fed larvae was significantly lower than control, but the injected larvae of both control and PPA showed the highest nodulation 24 hr postinjection.Although the highest activity of phenoloxidase was observed 12 and 24 hr postinjection but its activity significantly decreased in PPA-fed larvae compared to control. Gene expression of antimicrobial peptides including attacin, Arch. Insect Biochem. Physiol. 2019;101:e21543.wileyonlinelibrary.com/journal/arch

show abstract

Effect of sweet flag rhizome oil (Acorus calamus) on hemogram and ultrastructure of hemocytes of the tobacco armyworm, Spodoptera litura (Lepidoptera: Noctuidae)

Cited by 60 publications

References 23 publications

Botanical Insecticides and Their Effects on Insect Biochemistry and Immunity

Botanical Insecticides and Their Effects on Insect Biochemistry and Immunity

Effect of Plant Based Essential Oil on Immune Response of Silkworm, Antheraea assama Westwood (Lepidoptera: Saturniidae)

Changes in immune responses of Helicoverpa armigera Hübner followed by feeding on Knotgrass, Polygonum persicaria agglutinin

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