Storage function and ultrastructure of the adult fat body in workers of the ant Camponotus festinatus (Buckley) (Hymenoptera : Formicidae)

Rosell, Rosemarie C.; Wheeler, Diana E.

doi:10.1016/0020-7322(95)00008-r

Cited by 20 publications

(11 citation statements)

References 18 publications

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“…The ultrastructural cytochemistry study and the chemical analysis using gas chromatography performed in parietal and perivisceral trophocytes and oenocytes of workers of the basal species C. rimosus and M. parallelus and media workers of the derived species A. disciger and A. laevigata revealed the presence of basic proteins and saturated and unsaturated lipids, confirming the result of Rosell and Wheeler (1995), and Zara et al (2002) for workers of Camponotus festinatus and larvae of Pachycondylla villosa, respectively.…”

Section: Discussionsupporting

confidence: 77%

Chemical detection of the proteins and lipids in the fat body cells from workers of Attini ants (Hymenoptera: Formicidae)

Roma¹,

Bueno²,

Camargo‐Mathias³

2008

Cell Biology International

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The ultrastructural cytochemistry study and the chemical analysis carried out to examine the fat body of workers of the basal Attini Cyphomyrmex rimosus and Mycetarotes parallelus and the derived Acromyrmex disciger and Atta laevigata revealed very electrondense protein granules of varied sizes and shapes distributed throughout the cytoplasm of parietal and perivisceral trophocytes and oenocytes. Lipids were present in the cytoplasm of trophocytes as very electrondense granules. In M. parallelus, A. disciger, and A. laevigata, lipids were present as droplets. In parietal as well as perivisceral oenocytes, lipid granules were very electrondense. In A. laevigata, lipids were present as droplets. The chemical analysis using gas chromatography showed that the main lipid compounds present in trophocytes and oenocytes were saturated (myristic, palmitic, and stearic) and unsaturated fatty acids (oleic and linoleic). Also, in basal species, lipid compounds consisted of mainly saturated fatty acids, while in derived species saturated as well as unsaturated fatty acids were observed.

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Section: Discussionsupporting

confidence: 77%

Chemical detection of the proteins and lipids in the fat body cells from workers of Attini ants (Hymenoptera: Formicidae)

Roma¹,

Bueno²,

Camargo‐Mathias³

2008

Cell Biology International

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“…However, protein granules with crystalline nuclei are generally considered to have a storage function, and vitellogenin-containing crystals in the ventral abdominal fat body of Monomorium pharaons queens were detected recently (Jensen & Brgesen, 2000). Furthermore, vitellogenin is a major component in the fat body of honeybee queens and queenless Camponotus festinatus workers (Lensky & Skolnik, 1980;Martinez & Wheeler, 1991;Rosell & Wheeler, 1995). The fact that vitellogenin is the predominant protein found in the queen as well as worker honeybees (Fluri et al, 1982) also lends support to this hypothesis (Fluri et al, 1982).…”

Section: Explication and Validation Of Premisesmentioning

confidence: 53%

The Regulatory Anatomy of Honeybee Lifespan

Amdam¹,

Omholt²

2002

Journal of Theoretical Biology

227

197

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“…Workers primarily nourish larvae with protein resources (Eisner & Wilson, 1958;Martinez & Wheeler, 1994;Wheeler & Martinez, 1995) during periods of reproduction and growth and accumulate storage proteins in the fat body (Martinez & Wheeler, 1994;Wheeler & Martinez, 1995) during periods of dormancy (i.e., in the absence of larvae). Thus, worker storage proteins act as a means of regulating seasonal brood production (Martinez & Wheeler, 1994;Rosell & Wheeler, 1995;Wheeler & Martinez, 1995). There is evidence that accumulated fat body resources in workers are used to provision the next year's sexuals (Tschinkel, 1987(Tschinkel, , 1998.…”

Section: Ns Nsmentioning

confidence: 99%

Optimists or realists? How ants allocate resources in making reproductive investments

Enzmann

Nonacs

2018

Journal of Animal Ecology

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Parents often face an investment trade-off between either producing many small or fewer large offspring. When environments vary predictably, the fittest parental solution matches available resources by varying only number of offspring and never optimal individual size. However when mismatches occur often between parental expectations and true resource levels, dynamic models like multifaceted parental investment (MFPI) and parental optimism (PO) both predict offspring size can vary significantly. MFPI is a "realist" strategy: parents assume future environments of average richness. When resources exceed expectations and it is too late to add more offspring, the best-case solution increases investment per individual. Brood size distributions therefore track the degree of mismatch from right-skewed around an optimal size (slight underestimation of resources) to left-skewed around a maximal size (gross underestimation). Conversely, PO is an "optimist" strategy: parents assume maximally good resource futures and match numbers to that situation. Normal or lean years do not affect "core" brood as costs primarily fall on excess "marginal" siblings who die or experience stunted growth (producing left-skewed distributions). Investment patterns supportive of both MFPI and PO models have been observed in nature, but studies that directly manipulate food resources to test predictions are lacking. Ant colonies produce many offspring per reproductive cycle and are amenable to experimental manipulation in ways that can differentiate between MFPI and PO investment strategies. Colonies in a natural population of a harvester ant (Pogonomyrmex salinus) were protein-supplemented over 2 years, and mature sexual offspring were collected annually prior to their nuptial flight. Several results support either MFPI or PO in terms of patterns in offspring size distributions and how protein differentially affected male and female production. Unpredicted by either model, however, is that supplementation affected distributions more strongly across years than within (e.g., small females are significantly rarer in the year after colonies receive protein). Parental investment strategies in P. salinus vary dynamically across years and conditions. Finding that past conditions can more strongly affect reproductive decisions than current ones, however, is not addressed by models of parental investment.

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Storage function and ultrastructure of the adult fat body in workers of the ant Camponotus festinatus (Buckley) (Hymenoptera : Formicidae)

Cited by 20 publications

References 18 publications

Chemical detection of the proteins and lipids in the fat body cells from workers of Attini ants (Hymenoptera: Formicidae)

Chemical detection of the proteins and lipids in the fat body cells from workers of Attini ants (Hymenoptera: Formicidae)

The Regulatory Anatomy of Honeybee Lifespan

Optimists or realists? How ants allocate resources in making reproductive investments

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