Snow and Christmas are two ideas which are often associated, even if I’ve so far only had a handful of white Christmas’in my life. Today our first Microbial Advent Calendar will be about snow making bacteria! Maybe snow making is bit strong, let’s say capable of bioprecipitation.<\/p>\n
The most studied case is Pseudomonas syringae<\/em>, a gram negative plant pathogen which enhances the ice formation of plants and fruits (Early paper here<\/a>). The bacteria synthesize proteins on its membrane that act has ice nuclei and can allow the formation of ice on surface from -1,8\u00b0C, where without it would occur between -4 and -12\u00b0C (more info here<\/a>). Some studies (in short here<\/a>, in long here<\/a>) also suggest that these ice nucleation properties could be involved in rain making and snowfall, this being a complex mechanism of bio-dispersion across large distance.<\/p>\n The ice nuclei formation proteins from P. synrigae<\/em> are commercially available<\/a> and widely used by ski resort in their snow blowgun to make more snow! (You can find an old review here<\/a>)[\/vc_column_text][\/vc_column][\/vc_row]\n","protected":false},"excerpt":{"rendered":" [vc_row type=”in_container” full_screen_row_position=”middle” scene_position=”center” text_color=”dark” text_align=”left” overlay_strength=”0.3″ shape_divider_position=”bottom”][vc_column column_padding=”no-extra-padding” column_padding_position=”all” background_color_opacity=”1″ background_hover_color_opacity=”1″ column_shadow=”none” column_border_radius=”none” width=”1\/4″ tablet_text_alignment=”default” phone_text_alignment=”default” column_border_width=”none” column_border_style=”solid”][\/vc_column][vc_column column_padding=”no-extra-padding” column_padding_position=”all” background_color_opacity=”1″ background_hover_color_opacity=”1″ column_shadow=”none” column_border_radius=”none” width=”1\/2″ tablet_text_alignment=”default” phone_text_alignment=”default” column_border_width=”none” column_border_style=”solid”][image_with_animation image_url=”736″ alignment=”right” animation=”Fade In” border_radius=”none” box_shadow=”none” max_width=”100%”][\/vc_column][vc_column column_padding=”no-extra-padding” column_padding_position=”all” background_color_opacity=”1″ background_hover_color_opacity=”1″ column_shadow=”none” column_border_radius=”none” width=”1\/4″ tablet_text_alignment=”default” phone_text_alignment=”default” column_border_width=”none” column_border_style=”solid”][\/vc_column][\/vc_row][vc_row type=”in_container” full_screen_row_position=”middle”…<\/p>\n","protected":false},"author":2,"featured_media":736,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[58],"tags":[11,64,15],"_links":{"self":[{"href":"https:\/\/www.aassie.net\/Pro\/wp-json\/wp\/v2\/posts\/735"}],"collection":[{"href":"https:\/\/www.aassie.net\/Pro\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.aassie.net\/Pro\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.aassie.net\/Pro\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.aassie.net\/Pro\/wp-json\/wp\/v2\/comments?post=735"}],"version-history":[{"count":4,"href":"https:\/\/www.aassie.net\/Pro\/wp-json\/wp\/v2\/posts\/735\/revisions"}],"predecessor-version":[{"id":781,"href":"https:\/\/www.aassie.net\/Pro\/wp-json\/wp\/v2\/posts\/735\/revisions\/781"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.aassie.net\/Pro\/wp-json\/wp\/v2\/media\/736"}],"wp:attachment":[{"href":"https:\/\/www.aassie.net\/Pro\/wp-json\/wp\/v2\/media?parent=735"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.aassie.net\/Pro\/wp-json\/wp\/v2\/categories?post=735"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.aassie.net\/Pro\/wp-json\/wp\/v2\/tags?post=735"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}