Drosophila melanogaster larvae control amylase secretion according to the hardness of food

Sakaguchi, Honami; Suzuki, Masataka

doi:10.3389/fphys.2013.00200

Cited by 16 publications

(14 citation statements)

References 8 publications

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“…Additionally, before they can reach the lower nutritious resources, the pioneers must expend energy digging a hole that may collapse (and suffocate them), with the likelihood of failure increasing if others in the group abandon the cluster prematurely. Finally, before they can be consumed, the unexploited resources may first need to be ‘socially digested’ via the production and excretion of digestive enzymes of the pioneering larvae (Gregg et al., , Sakaguchi and Suzuki, ). Thus, there are few immediate benefits and considerable uncertainties, investments and risks involved in initiating a feeding cluster.…”

Section: Discussionmentioning

confidence: 99%

“…Finally, before they can be consumed, the unexploited resources may first need to be 'socially digested' via the production and excretion of digestive enzymes of the pioneering larvae (Gregg et al, 1990, Sakaguchi andSuzuki, 2013). Thus, there are few immediate benefits and considerable uncertainties, investments and risks involved in initiating a feeding cluster.…”

Section: Discussionmentioning

confidence: 99%

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Kin recognition and co‐operative foraging inDrosophila melanogasterlarvae

Khodaei

Long

2019

J of Evolutionary Biology

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A long‐standing goal for biologists and social scientists is to understand the factors that lead to the evolution and maintenance of co‐operative behaviour between conspecifics. To that end, the fruit fly, Drosophila melanogaster, is becoming an increasingly popular model species to study sociality; however, most of the research to date has focused on adult behaviours. In this study, we set out to examine group‐feeding behaviour by larvae and to determine whether the degree of relatedness between individuals mediates the expression co‐operation. In a series of assays, we manipulated the average degree of relatedness in groups of third‐instar larvae that were faced with resource scarcity, and measured the size, frequency and composition of feeding clusters, as well as the fitness benefits associated with co‐operation. Our results suggest that larval D. melanogaster are capable of kin recognition (something that has not been previously described in this species), as clusters were more numerous, larger and involved more larvae, when more closely related kin were present in the social environment. These findings are discussed in the context of the correlated fitness‐associated benefits of co‐operation, the potential mechanisms by which individuals may recognize kin, and how that kinship may play an important role in facilitating the manifestation of this co‐operative behaviour.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Kin recognition and co‐operative foraging inDrosophila melanogasterlarvae

Khodaei

Long

2019

J of Evolutionary Biology

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“…Olfaction is key to the survival of Drosophila larvae: attractive odors guide larvae towards food sources ( Asahina et al, 2008 ; Gomez-Marin and Louis, 2012 ). Feeding in larvae is also facilitated by the aggregation of groups of larvae that expel digestive enzymes in their saliva — a process called social digestion ( Gregg et al, 1990 ; Sakaguchi and Suzuki, 2013 ). Spatial aggregation of larvae relies on the detection of pheromones ( Mast et al, 2014 ; Del Pino et al, 2015 ).…”

Section: Discussionmentioning

confidence: 99%

Species-specific modulation of food-search behavior by respiration and chemosensation in Drosophila larvae

Kim

Álvarez

Lechuga

et al. 2017

eLife

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Animals explore their environment to encounter suitable food resources. Despite its vital importance, this behavior puts individuals at risk by consuming limited internal energy during locomotion. We have developed a novel assay to investigate how food-search behavior is organized in Drosophila melanogaster larvae dwelling in hydrogels mimicking their natural habitat. We define three main behavioral modes: resting at the gel’s surface, digging while feeding near the surface, and apneic dives. In unstimulated conditions, larvae spend most of their time digging. By contrast, deep and long exploratory dives are promoted by olfactory stimulations. Hypoxia and chemical repellents impair diving. We report remarkable differences in the dig-and-dive behavior of D. melanogaster and the fruit-pest D. suzukii. The present paradigm offers an opportunity to study how sensory and physiological cues are integrated to balance the limitations of dwelling in imperfect environmental conditions and the risks associated with searching for potentially more favorable conditions.

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“…The study of Sakaguchi and Suzuki (2013) with Drosophila melanogaster suggested that increasing the amylase content of the food medium had the same effect on the larval growth rate as that observed in the large population group. It is conceivable that the addition of amylase to the food increases its glucose content, which in turn may have caused the pupation delay.…”

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confidence: 85%

Effect of four different nutrition regimes on the alpha-amylase gene expression in the Indian moth,Plodia interpunctella

Masoumi

Pourabad

Mohommadi

et al. 2016

Annales de la Société entomologique de France (N.S.)

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Plodia interpunctella (Hübner 1813) (Lepidoptera: Pyralidae) is a cosmopolitan species known to infest a wide range of dried plant materials, including legumes and cereals. In this study, enzyme activity and expression of alphaamylase gene in larval P. interpunctella grown on four different nutrition regimes was studied. The different nutrition regimes caused differential change in expression of alpha-amylase gene. Compared with the control (artificial diet), the walnut regime caused a 10.8% increase in expression of the alpha-amylase gene, whereas 79.3, 52.5, and 7.5% decreases were observed in the larvae grown on dates, raisins and oleaster respectively. The results also showed that glucose repression varied among larvae feeding on different food diets. The results revealed that expression of the alpha-amylase coding gene was significantly reduced in the larvae grown on date and raisin containing high amounts of glucose. A biochemical assay indicated overlapping of alpha-amylase activity and expression. Complexity in expression of amylase genes suggests the existence of a negative feedback mechanism in the insect larvae. Different parameters can affect gene expression and activation, which may explain the results presented here.Résumé. Effet de quatre régimes alimentaires différents sur l'expression du gène de l'alpha-amylase chez la Teigne des fruits secs, Plodia interpunctella. Plodia interpunctella (Hübner 1813) (Lepidoptera : Pyralidae) est une espèce cosmopolite connues pour infester une large gamme de matières végétales séchées, y compris les légumineuses et les céréales. Dans cette étude, l'activité enzymatique et l'expression du gène de l'alpha-amylase dans des larves de P. interpunctella élevées sur quatre régimes alimentaires différents ont été étudiées. Ces différents régimes ont causé un changement important dans l'expression du gène de l'alpha-amylase. Comparativement avec le régime témoin (milieu artificiel), le régime à base de noix a induit une augmentation de 10,8% dans l'expression du gène, tandis que 79,3%, 52,5% et 7,5% de baisse ont été obtenus chez les larves qui ont eu un régime, respectivement, à base de dates, de raisins secs et d'olives. Les résultats ont montré que la répression du glucose variait en fonction du régime alimentaire des larves. Ils ont également révélé que l'expression de gène codant pour l'alpha-amylase a été significativement réduite chez les larves se nourrissant de dates et de raisins secs contenant une grande quantité de glucose. Des tests biochimiques ont indiqué un chevauchement entre l'activité de l'alpha-amylase et son expression. La complexité dans l'expression des gènes de l'amylase suggère l'existence d'un mécanisme de rétroaction négative chez les larves de cet insecte. Différents paramètres peuvent influencer l'expression et l'activation des gènes codant pour l'alpha-amylase et permettent d'expliquer les résultats obtenus.

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Drosophila melanogaster larvae control amylase secretion according to the hardness of food

Cited by 16 publications

References 8 publications

Kin recognition and co‐operative foraging inDrosophila melanogasterlarvae

Kin recognition and co‐operative foraging inDrosophila melanogasterlarvae

Species-specific modulation of food-search behavior by respiration and chemosensation in Drosophila larvae

Effect of four different nutrition regimes on the alpha-amylase gene expression in the Indian moth,Plodia interpunctella

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