Plants absorb carbon dioxide from the atmosphere. Exactly how fast this might occur is not clear. The capacity of terrestrial ecosystems to absorb carbon dioxide emissions from human activity may be greater than previously thought, according to a new study published in Nature Climate Change, which looks at how plants react to environmental change. The authors say these results improve our ...
Following herbivory, plants produce jasmonic acid, a hormone which activates several plant defense reactions. Scientists found that leafhoppers can evaluate whether tobacco plants are ready for defense when attacked. If jasmonate-signaling is activated, leafhoppers desist from feeding and test other plants. If the hormonal signaling system is dysfunctional, the herbivores start their attack. In ...
