{"id":20291,"date":"2024-02-09T04:35:26","date_gmt":"2024-02-08T23:05:26","guid":{"rendered":"https:\/\/vajiramandravi.com\/current-affairs\/?p=20291"},"modified":"2025-04-06T00:21:54","modified_gmt":"2025-04-05T18:51:54","slug":"nematodes","status":"publish","type":"post","link":"https:\/\/vajiramandravi.com\/current-affairs\/nematodes\/","title":{"rendered":"What are Nematodes?"},"content":{"rendered":"<h2>About Nematodes<\/h2>\n<ul>\n<li>These are any worm of the\u00a0phylum Nematoda.<\/li>\n<li>Nematodes are among the most abundant animals on Earth.<\/li>\n<li>They occur as\u00a0parasites in animals and plants or as free-living forms in soil, fresh water, marine environments, and even such unusual places as vinegar, beer malts, and water-filled cracks deep within Earth\u2019s crust.<\/li>\n<li>Features\n<ul>\n<li>Nematodes are\u00a0bilaterally symmetrical, elongate, and usually tapered at both ends.<\/li>\n<li>Some species possess a pseudocoel, a fluid-filled body cavity between the digestive tract and the body wall.<\/li>\n<\/ul>\n<\/li>\n<li>Nematodes have been reported from\u00a0every continent on earth and\u00a0occur in deserts, swamps, the oceans, the tropics and Antarctica.<\/li>\n<li>Nematode parasites of animals occur in\u00a0almost all organs of the body, but the most common sites are in the alimentary, circulatory, and respiratory systems. Some of these worms are known by such common names as hookworm, lungworm, pinworm and threadworm<\/li>\n<li>They can cause a variety of diseases (such as filariasis, ascariasis, and trichinosis) and parasitize many crop plants and domesticated animals.\u00a0<\/li>\n<li>Significance\n<ul>\n<li>Most nematodes feed on bacteria, fungi, or other microscopic creatures. As such, they are a\u00a0major component of soil and sediment ecosystems.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h2>Key facts about Steinernema adamsi<\/h2>\n<ul>\n<li>This new species is a member of a\u00a0family of nematodes called\u00a0Steinernema that have long been used in agriculture to control insect parasites without pesticides.<\/li>\n<li>Steinernema are\u00a0not harmful to humans or other mammals and were first discovered in the 1920s.<\/li>\n<li>This new species is part of a special group of nematodes considered beneficial to humans because it can infect and kill insect pests<\/li>\n<li>It is an\u00a0entomopathogenic nematode that crawls inside of an insect, defecates highly pathogenic bacteria into its blood and then combines with that bacterium to kill the insect host.<\/li>\n<\/ul>\n<hr \/>\n<h3>Q1) What is a pest?<\/h3>\n<p>It is any living thing\u2014a plant, an animal, or a microorganism\u2014that has a negative effect on humans. It can be an unwanted plant (weed), fungi, nematode, microbe (such as bacteria or virus), insect, spider, mite, bird, fish, rodent,\u00a0<\/p>\n<p><strong>Source:<\/strong> <a href=\"https:\/\/phys.org\/news\/2024-02-discovery-nematode-species-crops-pesticides.html\" target=\"_blank\" rel=\"nofollow noopener\"><u>Discovery of new nematode species that could protect crops without pesticides<\/u><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Nematodes are any worm of the phylum Nematoda.<\/p>\n","protected":false},"author":5,"featured_media":20292,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[],"class_list":{"0":"post-20291","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-upsc-prelims-current-affairs","8":"no-featured-image-padding"},"acf":[],"_links":{"self":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/posts\/20291","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/comments?post=20291"}],"version-history":[{"count":0,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/posts\/20291\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/media\/20292"}],"wp:attachment":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/media?parent=20291"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/categories?post=20291"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/tags?post=20291"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}