Collecting differently sized particles on water surface by maneuvering pedal waves on the foot of the water snail <i>Pomacea canaliculata</i>

Huang, Zexiang; Yang, Hao; Xu, Ke; Wu, Jianing; Zhang, Jinxiu

doi:10.1039/d2sm01113a

Cited by 5 publications

(5 citation statements)

References 30 publications

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“…Several studies have shown that GST activity in the digestive glands of snails increased when exposed to pesticides or pollutants. Studies found that cadmium increased GST activity in the digestive glands of P. canaliculata [ 43 ]. This is consistent with our findings that the treatment increased GST, especially at 48 h, and that male snails had higher GST enzyme activity compared with females.…”

Section: Discussionmentioning

confidence: 99%

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Effect of Metaldehyde on Survival, Enzyme Activities, and Histopathology of the Apple Snail Pomacea canaliculata (Lamarck 1822)

Liu,

Chen,

Zhang

et al. 2024

Biology

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Pomacea canaliculata, as an invasive exotic species in Asia, can adversely affect crop yields, eco-environment, and human health. Application of molluscicides containing metaldehyde is one effective method for controlling P. canaliculata. In order to investigate the effects of metaldehyde on adult snails, we conducted acute toxicological experiments to investigate the changes in enzyme activities and histopathology after 24 h and 48 h of metaldehyde action. The results showed that the median lethal concentrations (LC) of metaldehyde on P. canaliculata were 3.792, 2.195, 1.833, and 1.706 mg/L at exposure times of 24, 48, 72, and 96 h, respectively. Treatment and time significantly affected acetylcholinesterase (AChE), glutathione S-transferase (GST), and total antioxidant capacity (TAC) activity, with sex significantly affecting AChE, GST, and TAC activity and time significantly affecting carboxylesterase (CarE). In addition, the interaction of treatment and time significantly affected the activity of GST, CarE and TAC. In addition, histopathological changes occurred in the digestive glands, gills and gastropods of apple snail exposed to metaldehyde. Histological examination of the digestive glands included atrophy of the digestive cells, widening of the hemolymph gap, and an increase in basophils. In treated snails, the hemolymph gap in the gills was widely dilated, the columnar cells were disorganized or even necrotic, and the columnar muscle cells in the ventral foot were loosely arranged and the muscle fibers reduced. The findings of this study can provide some references for controlling the toxicity mechanism of invasive species.

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Section: Discussionmentioning

confidence: 99%

“…P. canaliculata has a feeding pattern that utilizes the surface of its feet to generate pedal waves that float across the air–water interface to collect food. Thus, dissolution of muscle fibers in the feet may cause disruption of feeding behavior [ 43 ].…”

Section: Discussionmentioning

confidence: 99%

Effect of Metaldehyde on Survival, Enzyme Activities, and Histopathology of the Apple Snail Pomacea canaliculata (Lamarck 1822)

Liu,

Chen,

Zhang

et al. 2024

Biology

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“…8 However, owing to its lack of flavour and high processing costs, this snail was discarded by farmers, resulting in its entry into natural aquatic environments. 9 Owing to its varied feeding habits, substantial dietary needs, swift reproductive rates, adaptability and the absence of natural predators, P. canaliculata has swiftly formed substantial populations in natural habitats, resulting in notable harm to local agricultural and wetland ecosystems. 10,11 Moreover, it serves as an intermediate host for parasites that pose human health risks, such as Angiostrongylus cantonensis and Echinostoma revolutum.…”

Section: Introductionmentioning

confidence: 99%

Molluscicide screening and identification of novel targets against Pomacea canaliculata

Qu,

Yao,

Wang

et al. 2024

Pest Management Science

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BACKGROUNDDue to the non‐availability of any clear targets for molluscicides against Pomacea canaliculata (P. canaliculata), target‐based screening strategy cannot be employed. In this study, the molluscicidal effects of typical pesticides on P. canaliculata were evaluated to obtain the molluscicide target. A series of arylpyrrole compounds were synthesized based on the discovered target, and the structure–activity relationship was explored. A preliminary strategy for screening molluscicides based on specific targets was also developed.RESULTSA laboratory colony of P. canaliculata was developed, which showed no difference in sensitivity to niclosamide compared with the wild group, while exhibited a higher stability against pesticide response. Mitochondrial adenosine triphosphate (ATP) synthase inhibitors and mitochondrial membrane potential uncouplers were identified and validated as potential targets for molluscicide screening against P. canaliculata. A series of arylpyrrole compounds were designed and synthesized. The median lethal concentration (LC50) of 4‐bromo‐2‐(4‐chlorophenyl)‐5‐(trifluoromethyl)‐1H‐pyrrole‐3‐carbonitrile (Compound 102) was 10 times lower than that of niclosamide.CONCLUSIONNew molluscicide targets were discovered and validated, and preliminary strategies were explored for pesticide screening based on these targets. Compound 102 exhibited a high molluscicidal activity and had a great potential value for exploring a molluscicide to control P. canaliculata.This article is protected by copyright. All rights reserved.

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“…Liquid-air interfaces also act as a cradle to Neuston, organisms that inhabit at and below the water surface. For example, the underwater apple snail Pomacea canaliculata exploits the water surface to drive a large-scale surface flow and fetch floating food particles from afar in a process called pedal surface collection [24][25][26][27] . Whirligig beetles and water striders have developed morphological features to manipulate flow around them for effective locomotion at the interface 28,29 .…”

mentioning

confidence: 99%

“…Here, we reveal how a rhythmically deforming solid boundary pumps viscous liquid at the interface, and transports floating objects from distances much larger than its size. Our design, inspired in part by the capability of underwater snails in creating flow through undulations on their flexible foot 26,27 , produces traveling waves on an undulator. Even though traveling boundaries are a canonical strategy to drive flow within enclosed spaces when placed near a liquid-air interface, the undulator gives rise to non-intuitive observations; pumping does not increase proportionally to the wave speed, and we observe non-monotonicity in the average motion of surface floaters as the wave speed is gradually increased.…”

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confidence: 99%

Optimal free-surface pumping by an undulating carpet

Pandey,

Chen,

Yuk

et al. 2023

Nat Commun

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Examples of fluid flows driven by undulating boundaries are found in nature across many different length scales. Even though different driving mechanisms have evolved in distinct environments, they perform essentially the same function: directional transport of liquid. Nature-inspired strategies have been adopted in engineered devices to manipulate and direct flow. Here, we demonstrate how an undulating boundary generates large-scale pumping of a thin liquid near the liquid-air interface. Two dimensional traveling waves on the undulator, a canonical strategy to transport fluid at low Reynolds numbers, surprisingly lead to flow rates that depend non-monotonically on the wave speed. Through an asymptotic analysis of the thin-film equations that account for gravity and surface tension, we predict the observed optimal speed that maximizes pumping. Our findings reveal how proximity to free surfaces, which ensure lower energy dissipation, can be leveraged to achieve directional transport of liquids.

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Collecting differently sized particles on water surface by maneuvering pedal waves on the foot of the water snail Pomacea canaliculata

Abstract: The water snail (Pomacea canaliculata) is featured in both broad dietary scope and high feeding rate, possibly making it one of the most successful mollusc invaders globally. The water snail...

Cited by 5 publications

References 30 publications

Effect of Metaldehyde on Survival, Enzyme Activities, and Histopathology of the Apple Snail Pomacea canaliculata (Lamarck 1822)

Effect of Metaldehyde on Survival, Enzyme Activities, and Histopathology of the Apple Snail Pomacea canaliculata (Lamarck 1822)

Molluscicide screening and identification of novel targets against Pomacea canaliculata

Optimal free-surface pumping by an undulating carpet

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