{"id":43864,"date":"2026-07-17T11:00:41","date_gmt":"2026-07-17T09:00:41","guid":{"rendered":"https:\/\/resoilfoundation.org\/?p=43864"},"modified":"2026-07-15T12:40:48","modified_gmt":"2026-07-15T10:40:48","slug":"chloroplasts-stromules-plants-climate-drought","status":"publish","type":"post","link":"https:\/\/resoilfoundation.org\/en\/agricultural-industry\/chloroplasts-stromules-plants-climate-drought\/","title":{"rendered":"The tiny “fingers” that help plants survive stress"},"content":{"rendered":"

German study sheds light on the role of plant stromules, the slender extensions of chloroplasts that transmit stress signals to the cell nucleus and activate defenses against heat, drought, and soil salinity<\/h2>\n

by Matteo Cavallito<\/p>\n

To cope with heatwaves<\/strong>, drought, and the growing salinization<\/a> of soils, plants obviously cannot move in search of better conditions. Their survival therefore depends on their ability to respond quickly by activating effective defense mechanisms<\/strong>. Yet the processes behind these responses have long remained a genuine mystery. At least until now.<\/p>\n

A new study<\/a> by the Karlsruhe Institute of Technology (KIT)<\/strong> has now shed light on the phenomenon by revealing the role of a specialized cellular communication system involving chloroplasts<\/strong>, the organelles responsible for photosynthesis<\/strong>. Under stress conditions, chloroplasts develop slender tubular extensions known as stromules<\/strong>\u2014finger-like structures that plants use to send signals to the nucleus and activate genetic programs capable of limiting the damage caused by adverse environmental conditions.<\/p>\n

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Here is how soil bacteria can save crops from salinization<\/a><\/p><\/blockquote>\n