{"id":235486,"date":"2017-03-28T18:30:59","date_gmt":"2017-03-28T21:30:59","guid":{"rendered":"http:\/\/revistapesquisa.fapesp.br\/en\/?p=235486"},"modified":"2017-03-28T18:30:59","modified_gmt":"2017-03-28T21:30:59","slug":"elevated-c02-makes-for-drought-resistant-plant","status":"publish","type":"post","link":"https:\/\/revistapesquisa.fapesp.br\/en\/elevated-c02-makes-for-drought-resistant-plant\/","title":{"rendered":"Elevated C0<sub>2<\/sub> makes for drought-resistant plant"},"content":{"rendered":"<div id=\"attachment_235487\" style=\"max-width: 310px\" class=\"wp-caption alignright\"><a href=\"http:\/\/revistapesquisa.fapesp.br\/wp-content\/uploads\/2017\/03\/015_Tecno_herbacea_C.jpg\" rel=\"attachment wp-att-235487\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-235487\" src=\"http:\/\/revistapesquisa.fapesp.br\/wp-content\/uploads\/2017\/03\/015_Tecno_herbacea_C-300x225.jpg\" alt=\"Chrysolaena obovata: Cerrado species adapts better to drought with carbon dioxide level of 760 ppm \" width=\"300\" height=\"225\" \/><p class=\"wp-caption-text\"><span class=\"media-credits-inline\">Maria Angela M. Carvalho <\/span><\/a> <em>Chrysolaena obovata<\/em>: Cerrado species adapts better to drought with carbon dioxide level of 760 ppm<span class=\"media-credits\">Maria Angela M. Carvalho <\/span><\/p><\/div>\n<p>If the coming decades bring the doubling of the atmospheric concentration of carbon dioxide (C0<sub>2<\/sub>) \u2013 the main gas behind the greenhouse effect, in turn the cause of global warming \u2013 Brazil\u2019s Cerrado savannah will likely face harsher periods of drought. However, the negative effects of a substantial drop in the levels of water available for the physiological processes essential to plant life may be offset precisely by high rates of carbon gas (<em>Frontiers in Plant Science<\/em>, June 14, 2016). At least this is what happened when a team from the Botanical Institute of S\u00e3o Paulo (IBt) conducted an experiment with <em>Chrysolaena obovata<\/em> plants, a native Cerrado species of the Asteraceae family. The researchers cultivated batches of plants of this species using two different scenarios, one at a CO<sub>2 <\/sub>rate of 380 parts per million (ppm), near today\u2019s level, and one at 760 ppm, the level predicted by the end of the 21<sup>st<\/sup> century. In both environments, the samples of <em>C. obovata<\/em> were divided into four sub-groups, each of which was submitted to a specific irrigation regimen for one month. One sub-group received 100% of the water considered ideal for its growth, while the other three were exposed to watering regimens that mimicked a light, moderate, or severe drought, that is, 75%, 50%, or 25% of total ideal water. At the end of the experiment, it was found that water use and the maintenance of both photosynthesis and energy reserves were much more efficient in plants grown under elevated CO<sub>2<\/sub>. \u201cThese findings show that in predicted climate-change scenarios, conditions will favor the conservation of this species,\u201d says botanist Maria Angela M. Carvalho, of the IBt.<\/p>\n","protected":false},"excerpt":{"rendered":"Cerrado species adapts better to drought with high carbon dioxide level ","protected":false},"author":475,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_exactmetrics_skip_tracking":false,"_exactmetrics_sitenote_active":false,"_exactmetrics_sitenote_note":"","_exactmetrics_sitenote_category":0,"footnotes":""},"categories":[1651],"tags":[206,213,200],"coauthors":[785],"class_list":["post-235486","post","type-post","status-publish","format-standard","hentry","category-notes","tag-biodiversity","tag-botany","tag-environment"],"acf":[],"_links":{"self":[{"href":"https:\/\/revistapesquisa.fapesp.br\/en\/wp-json\/wp\/v2\/posts\/235486","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/revistapesquisa.fapesp.br\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/revistapesquisa.fapesp.br\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/revistapesquisa.fapesp.br\/en\/wp-json\/wp\/v2\/users\/475"}],"replies":[{"embeddable":true,"href":"https:\/\/revistapesquisa.fapesp.br\/en\/wp-json\/wp\/v2\/comments?post=235486"}],"version-history":[{"count":0,"href":"https:\/\/revistapesquisa.fapesp.br\/en\/wp-json\/wp\/v2\/posts\/235486\/revisions"}],"wp:attachment":[{"href":"https:\/\/revistapesquisa.fapesp.br\/en\/wp-json\/wp\/v2\/media?parent=235486"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/revistapesquisa.fapesp.br\/en\/wp-json\/wp\/v2\/categories?post=235486"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/revistapesquisa.fapesp.br\/en\/wp-json\/wp\/v2\/tags?post=235486"},{"taxonomy":"author","embeddable":true,"href":"https:\/\/revistapesquisa.fapesp.br\/en\/wp-json\/wp\/v2\/coauthors?post=235486"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}