单词	mealybug
释义	mealybug noun mealy·​bug ˈmē-lē-ˌbəg  : any of a family (Pseudococcidae) of scale insects that have a white cottony or waxy covering and are destructive pests especially of fruit trees Example Sentences Recent Examples on the Web Tremblaya helps to supply the mealybug with essential amino acids and likely receives nutrients and other life-sustaining molecules in return. Quanta Magazine, 20 June 2013 One such Russian-doll merger occurred about 100 million years ago, when the small insect pests called mealybugs acquired a bacterial endosymbiont, Tremblaya. Quanta Magazine, 3 Oct. 2019 Phillip and Beazley have found mango weevil, pink hibiscus mealybug and citrus canker. Laura Reiley, Washington Post, 27 Nov. 2019 Thus, Tremblaya and Moranella work together to produce essential amino acids for themselves as well as the ones that the mealybug cannot find in its strict sap diet. Quanta Magazine, 3 Oct. 2019 Examine houseplants and tropicals before bringing them indoors and discard any that are full of whitefly, scale, mealybugs or other tenacious pests. Washington Post, 29 Oct. 2019 The result is that the mealybug cell contains a bacterium that contains another bacterium – an arrangement discovered back in 2001 by Carol von Dohlen, a biologist at Utah State University. Quanta Magazine, 3 Oct. 2019 Yet that often has little effect in containing the disease, which is spread by tiny white insects called mealybugs. Olivia Konotey-ahulu / Bloomberg, Time, 6 Sep. 2019 With just 121 protein-coding genes, the diminutive Tremblaya princeps, a symbiotic bacterium that lives inside specialized cells of the sap-eating mealybug, has the smallest known genome of any cellular organism on the planet. Quanta Magazine, 20 June 2013 See More Word History First Known Use 1824, in the meaning defined above
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