{"id":32238,"date":"2017-07-11T17:09:22","date_gmt":"2017-07-11T15:09:22","guid":{"rendered":"https:\/\/ocasapiens-dweb.blogautore.repubblica.it\/?p=32238"},"modified":"2017-07-11T17:09:22","modified_gmt":"2017-07-11T15:09:22","slug":"come-il-pomodoro-trasforma-lerbivoro-in-cannibale","status":"publish","type":"post","link":"https:\/\/archivio.ocasapiens.org\/index.php\/2017\/07\/11\/come-il-pomodoro-trasforma-lerbivoro-in-cannibale\/","title":{"rendered":"Come il pomodoro trasforma l'erbivoro in cannibale"},"content":{"rendered":"

Mi ripeto, lo so, ma Nature Eco-Evo<\/em> pubblica articoli deliziosi, per esempio “Induced defense in plants reduce herbivory by increasing cannibalism<\/a>“, di John Orrock<\/a>, Brian Connolly e Anthony Kitchen –\u00a0nomen omen – <\/em>dell’universit\u00e0 del Wisconsin:<\/p>\n

Plants are attacked by myriad herbivores, and many plants\u00a0exhibit anti-herbivore defences. We tested the hypothesis\u00a0that induced defences benefit tomato plants by encouraging \u00a0insects to eat other members of their species.<\/p>\n

\"\"<\/p>\n

S. exiqua<\/em>, fonte<\/a><\/p>\n

In alcune teche hanno messo dei bruchi di Spodoptera exigua<\/em>, un tot di loro larve (defunte) e delle piante di pomodoro, hanno spruzzato sulle foglie un po’ del jasmonato di metile che le piante emettono quando sono stressate o attaccate. Nelle teche di controllo, no. Due giorni dopo nelle teche con il jasmonato, i bruchi avevano fatto fuori gran parte del tot. Nelle teche di controllo, no:<\/p>\n

We found that defences that promote cannibalism benefit tomatoes in two\u00a0ways: cannibalism directly reduces herbivore abundance, and\u00a0cannibals eat significantly less plant material…<\/p>\n

Per gli agricoltori, incitare al cannibalismo potrebbe essere un modo sostenibile di limitare i danni, dice Anurag Agrawal<\/a> di Cornell nel commento<\/a> su Nature<\/em><\/p>\n

Tuttavia, in certe condizioni sul campo, i cannibali potrebbero essere pi\u00f9 “fit” dei non cannibali, quindi bisogna star all’erta. Non vorremmo incoraggiare dei super-parassiti.<\/p>\n

Rif. anche Nicola Davis<\/a><\/strong> sul Guardian<\/em><\/p>\n

*<\/p>\n

Agricoltura patafisica<\/strong><\/p>\n

Su un tema affine, Hortensio segnala<\/a><\/strong> le propriet\u00e0 terapeutiche e profilattiche della “dieta vegetale bioattiva” a base di frutta e verdura coltivate in orti paramagnetici <\/a><\/strong>bioattivi anch’essi. Uno viene sperimentato nell’orto botanico di Firenze… per \u00a0incoraggiare super-parassiti come il conte Ugolino?<\/p>\n

***<\/p>\n

Scrive Sara Reardon<\/a>:<\/p>\n

US President Donald Trump has pledged to shrink the federal government, and he seems to be starting with science. Nearly six months after taking office, Trump has not chosen a science adviser, and the White House\u2019s Office of Science and Technology Policy (OSTP) has dwindled from around 130\u00a0staff members under former president Barack Obama to 35.<\/p>\n

The vacancies have diminished the White House\u2019s ability to coordinate science policy and spending between agencies, and have left govern-ment-wide programmes on topics such as cybersecurity, regulation of genetically modified organisms and science education without clear direction. And the problem is expected to worsen, with the continuing exodus of the OSTP\u2019s non-political (or \u2018career\u2019) staff; four senior people left on 30 June alone. Many are frustrated that the White House is not calling on scientific expertise when making decisions.<\/p>\n

Alla cyber-sicurezza ci pensa gi\u00e0 la Russia…<\/p>\n

***<\/p>\n

Save the date<\/strong><\/p>\n

EuroScience selects Trieste to organize ESOF 2020 and Leiden\/The Hague for ESOF 2022<\/a><\/p>\n

EuroScience and the ESOF Supervisory Board are proud to announce that the EuroScience Open Forum 2020 will be hosted from 4 to 10 July 2020 in Trieste, Italy.<\/p>\n","protected":false},"excerpt":{"rendered":"

Mi ripeto, lo so, ma Nature Eco-Evo pubblica articoli deliziosi, per esempio “Induced defense in plants reduce herbivory by increasing cannibalism“, di John Orrock, Brian Connolly e Anthony Kitchen –\u00a0nomen omen – dell’universit\u00e0 del Wisconsin: Plants are attacked by myriad herbivores, and many plants\u00a0exhibit anti-herbivore defences. We tested the hypothesis\u00a0that induced defences benefit tomato plants… Continua a leggere Come il pomodoro trasforma l'erbivoro in cannibale<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2,8,9],"tags":[214,981,2399,4729,5081],"class_list":["post-32238","post","type-post","status-publish","format-standard","hentry","category-altri-animali","category-bufala","category-chimica","tag-agricoltura","tag-botanica","tag-esof","tag-nature-ecology-evolution","tag-orti-pramagnetici-bioattivi","entry"],"_links":{"self":[{"href":"https:\/\/archivio.ocasapiens.org\/index.php\/wp-json\/wp\/v2\/posts\/32238","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/archivio.ocasapiens.org\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/archivio.ocasapiens.org\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/archivio.ocasapiens.org\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/archivio.ocasapiens.org\/index.php\/wp-json\/wp\/v2\/comments?post=32238"}],"version-history":[{"count":0,"href":"https:\/\/archivio.ocasapiens.org\/index.php\/wp-json\/wp\/v2\/posts\/32238\/revisions"}],"wp:attachment":[{"href":"https:\/\/archivio.ocasapiens.org\/index.php\/wp-json\/wp\/v2\/media?parent=32238"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/archivio.ocasapiens.org\/index.php\/wp-json\/wp\/v2\/categories?post=32238"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/archivio.ocasapiens.org\/index.php\/wp-json\/wp\/v2\/tags?post=32238"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}