Nutritional Composition of<i>Opuntia sulphurea</i>G. Don Cladodes

Carreira, Valeria Paula; Padró, Julián; Koch, Nicolás Mongiardino; Fontanarrosa, Pedro; Alonso, Ignacio González; Soto, Ignacio M.

doi:10.2985/026.019.0106

Cited by 20 publications

(21 citation statements)

References 46 publications

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“…In fact, in Drosophila , correlations between the circadian clock and development time have been observed, with the latter depending in turn on the substrate quality (Walkiewicz & Stern, ; Yadav & Sharma, ). In the present case, O. sulphurea is a cactus host richer in sugar and fat content respect to T. terscheckii (Padro & Soto, ; Carreira et al ., ), which also harbors higher diversity of cactophilic microorganisms and yeasts in its necrotic tissues (Mongiardino Koch et al ., ). Therefore, the experimental substrates are nutritionally different and could be a key factor conditioning the time spent in pupal stage, thus affecting ET as we know it affects development time (Soto et al ., ; Soto et al ., ).…”

Section: Discussionmentioning

confidence: 99%

Pupal emergence pattern in cactophilic Drosophila and the effect of host plants

et al. 2017

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Drosophila buzzatii and D. koepferae are sibling cactophilic species. The former breeds primarily on prickly pears (genus Opuntia) whereas the latter breeds on columnar cacti of the genera Cereus and Trichocereus, although with certain degree of niche overlapping. We examined the interspecific differences in diurnal temporal patterns of adult emergence from puparia and evaluated whether this behavior is affected by rearing in the different cactus hosts available in nature. We detected important host-dependent genetic variation for this trait differentially affecting the emergence schedule of these species. Diurnal pattern of emergence time was directly correlated with developmental time and negatively correlated with adult wing size, suggesting that early emergences are at least indirectly correlated with increased fitness. We discussed our results in terms of their putative effects on fitness and the genetic-metabolic pathways that would be presumably affected by host's nutritional-chemical differences.

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Section: Discussionmentioning

confidence: 99%

Pupal emergence pattern in cactophilic Drosophila and the effect of host plants

et al. 2017

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“…Recent nutritional studies of both cacti revealed that O. sulphurea has slightly more free sugars (although lower than other Opuntia) and total fat, while T. terscheckii has a richer composition of fatty acids Carreira et al 2014).…”

Section: The Cactus Hosts Are Chemically Differentmentioning

confidence: 99%

Transcriptome modulation during host shift is driven by secondary metabolites in desert Drosophila

et al. 2016

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High-throughput transcriptome studies are breaking new ground to investigate the responses that organisms deploy in alternative environments. Nevertheless, much remains to be understood about the genetic basis of host plant adaptation. Here, we investigate genome-wide expression in the fly Drosophila buzzatii raised in different conditions. This species uses decaying tissues of cactus of the genus Opuntia as primary rearing substrate and secondarily, the necrotic tissues of the columnar cactus Trichocereus terscheckii. The latter constitutes a harmful host, rich in mescaline and other related phenylethylamine alkaloids. We assessed the transcriptomic responses of larvae reared in Opuntia sulphurea and T. terscheckii, with and without the addition of alkaloids extracted from the latter. Whole-genome expression profiles were massively modulated by the rearing environment, mainly by the presence of T. terscheckii alkaloids. Differentially expressed genes were mainly related to detoxification, oxidation-reduction and stress response; however, we also found genes involved in development and neurobiological processes. In conclusion, our study contributes new data onto the role of transcriptional plasticity in response to alternative rearing environments.

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“…Although prickly pears (genus Opuntia ) are its main natural hosts, D. buzzatii can exploit columnar cacti of the genera Trichocereus and Cereus as secondary hosts (Barker, ; Soto et al ., ). Recent studies suggest the presence of alkaloids as the main chemical difference between O. sulphurea and Trichocereus terschekii (Hasson et al ., ; Padró & Soto, ; Carreira et al ., ), two of the most important D. buzzatii host plants in Argentina. Actually, T. terscheckii is especially rich in phenethylamines alkaloids (Reti & Castrillon, ; Corio et al ., ), and recent studies showed that an alkaloid fraction causes detrimental effects by impairing viability and decreasing body size (Corio et al ., ).…”

Section: Introductionmentioning

confidence: 99%

Host alkaloids differentially affect developmental stability and wing vein canalization in cactophilicDrosophila buzzatii

Padró

Carreira

Corio

et al. 2014

J of Evolutionary Biology

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Host shifts cause drastic consequences on fitness in cactophilic species of Drosophila. It has been argued that changes in the nutritional values accompanying host shifts may elicit these fitness responses, but they may also reflect the presence of potentially toxic secondary compounds that affect resource quality. Recent studies reported that alkaloids extracted from the columnar cactus Trichocereus terscheckii are toxic for the developing larvae of Drosophila buzzatii. In this study, we tested the effect of artificial diets including increasing doses of host alkaloids on developmental stability and wing morphology in D. buzzatii. We found that alkaloids disrupt normal wing venation patterning and affect viability, wing size and fluctuating asymmetry, suggesting the involvement of stress-response mechanisms. Theoretical implications are discussed in the context of developmental stability, stress, fitness and their relationship with robustness, canalization and phenotypic plasticity.

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Nutritional Composition ofOpuntia sulphureaG. Don Cladodes

Cited by 20 publications

References 46 publications

Pupal emergence pattern in cactophilic Drosophila and the effect of host plants

Pupal emergence pattern in cactophilic Drosophila and the effect of host plants

Transcriptome modulation during host shift is driven by secondary metabolites in desert Drosophila

Host alkaloids differentially affect developmental stability and wing vein canalization in cactophilicDrosophila buzzatii

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