Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1242/jeb.089664 |
Physiological and behavioural effects of fruit toxins on seed-predating versus seed-dispersing congeneric rodents | |
Samuni-Blank, Michal1; Izhaki, Ido2; Dearing, M. Denise3; Karasov, William H.4; Gerchman, Yoram5; Kohl, Kevin D.3; Lymberakis, Petros6; Kurnath, Patrice3; Arad, Zeev1 | |
通讯作者 | Samuni-Blank, Michal |
来源期刊 | JOURNAL OF EXPERIMENTAL BIOLOGY |
ISSN | 0022-0949 |
EISSN | 1477-9145 |
出版年 | 2013 |
卷号 | 216期号:19页码:3667-3673 |
英文摘要 | Fleshy, ripe fruits attract seed dispersers but also seed predators. Although many fruit consumers (legitimate seed dispersers as well as seed predators) are clearly exposed to plant secondary compounds (PSCs), their impact on the consumers’ physiology and foraging behaviour has been largely overlooked. Here, we document the divergent behavioural and physiological responses to fruit consumption of three congeneric rodent species in the Middle East, representing both seed dispersers and seed predators. The fruit pulp of the desert plant Ochradenus baccatus contains high concentrations of glucosinolates (GLSs). These GLSs are hydrolyzed into active toxic compounds upon contact with the myrosinase enzyme released from seeds crushed during fruit consumption. Acomys russatus and A. cahirinus share a desert habitat. Acomys russatus acts as an O. baccatus seed predator, and A. cahirinus circumvents the activation of the GLSs by orally expelling vital seeds. We found that between the three species examined, A. russatus was physiologically most tolerant to whole fruit consumption and even A. minous, which is evolutionarily naive to O. baccatus, exhibits greater tolerance to whole fruit consumption than A. cahirinus. However, like A. cahirinus, A. minous may also behaviourally avoid the activation of the GLSs by making a hole in the pulp and consuming only the seeds. Our findings demonstrate that seed predators have a higher physiological tolerance than seed dispersers when consuming fruits containing toxic PSCs. The findings also demonstrate the extreme ecological/evolutionary lability of this plant-animal symbiosis to shift from predation to mutualism and vice versa. |
英文关键词 | Acomys alanine aminotransferase bitter taste body mass fruits glucosinolates liver pulp secondary compounds seeds |
类型 | Article |
语种 | 英语 |
国家 | Israel ; USA ; Greece |
收录类别 | SCI-E |
WOS记录号 | WOS:000324233500020 |
WOS关键词 | PLANT SECONDARY METABOLITES ; VOLUNTARY FOOD-INTAKE ; GOLDEN SPINY MICE ; ACOMYS-RUSSATUS ; ALLYL CYANIDE ; ENERGY ; LIVER ; TASTE ; RESTRICTION ; TEMPERATURE |
WOS类目 | Biology |
WOS研究方向 | Life Sciences & Biomedicine - Other Topics |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/178317 |
作者单位 | 1.Technion Israel Inst Technol, Dept Biol, IL-32000 Haifa, Israel; 2.Univ Haifa, Dept Evolutionary & Environm Biol, IL-31905 Haifa, Israel; 3.Univ Utah, Dept Biol, Salt Lake City, UT 84103 USA; 4.Univ Wisconsin, Dept Forest & Wildlife Ecol, Madison, WI 53706 USA; 5.Univ Haifa, Dept Biol & Environm, IL-36006 Qiryat Tivon, Israel; 6.Univ Crete, Nat Hist Museum Crete, Herakleio 71409, Greece |
推荐引用方式 GB/T 7714 | Samuni-Blank, Michal,Izhaki, Ido,Dearing, M. Denise,et al. Physiological and behavioural effects of fruit toxins on seed-predating versus seed-dispersing congeneric rodents[J],2013,216(19):3667-3673. |
APA | Samuni-Blank, Michal.,Izhaki, Ido.,Dearing, M. Denise.,Karasov, William H..,Gerchman, Yoram.,...&Arad, Zeev.(2013).Physiological and behavioural effects of fruit toxins on seed-predating versus seed-dispersing congeneric rodents.JOURNAL OF EXPERIMENTAL BIOLOGY,216(19),3667-3673. |
MLA | Samuni-Blank, Michal,et al."Physiological and behavioural effects of fruit toxins on seed-predating versus seed-dispersing congeneric rodents".JOURNAL OF EXPERIMENTAL BIOLOGY 216.19(2013):3667-3673. |
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