In plants, the jasmonate (JA) signaling pathway helps plants control their defense responses to environmental stresses. Like the human body, plants respond differently to individual threats. Just as people wouldn’t get a fever due to a sprained ankle, plants deal with harmful elements in particular ways. A study looks at how plants respond to environmental threats in the correct way.
Imagine if humans could ‘talk’ to plants and warn them of approaching pest attacks or extreme weather. A team of plant scientists would like to turn this science fiction into reality using light-based messaging to ‘talk’ to plants
Male sterility in plants enhances breeding and hybrid crop production. The elusive Sanming Dominant Genic Male Sterile (SDGMS) Rice, discovered in 2001, offered stable male sterility. Scientists recently unraveled the SDGMS gene’s mechanism. They found that in sterile plants, a retrotransposon triggers SDGMS expression in tapetal cells, causing male sterility. This discovery highlights the importance of transposable elements in genome evolution and the utility of SDGMS rice for efficient breeding without manual emasculation.
Scientists have found a plant gene that drives the growth of root hairs, the tiny structures that help plants find water and nutrients in the soil. The gene, dubbed “BUZZ,” causes faster-growing, denser webs of roots and may also determine how plants find and use nitrates, a prime source of nitrogen essential to plant growth. Nitrates are also used in fertilizers that can pollute the environment as runoff, and this genetic discovery could ultimately help plant scientists find ways to grow crops more sustainably.
Researchers identify the first enzymatic step in the biosynthesis of these plant steroids important in the medical treatment of heart disease.
Researchers discovered a form of social immunity in wheat and rice. Disease susceptibility in wheat and rice is modulated not only by genetic resistance traits, but also by interactions with neighbouring plants of the same species. The findings, show that inter-plant cooperation can reduce disease susceptibility by nearly 90 percent in certain cases, as much as is conferred by a plant’s own resistance genes. The findings create new possibilities for improving plant resistance to disease and reducing the use of pesticides.
Researchers have identified sesquiterpenes – gaseous hydrocarbons that are released by plants – as being a major factor in cloud formation. This finding could reduce uncertainties in climate models and help make more accurate predictions.
A newly discovered way of optimising plant enzymes through bioengineering has increased knowledge of how plant material can be converted into biofuels, biochemicals and other high-value products.
A new study has uncovered intriguing insights into the evolution of plant biology, effectively rewriting the history of how they evolved over the past billion years.
An international group of scientists has issued an urgent call for coordinated action to save the iconic genus Rafflesia, which contains the world’s largest flowers. This follows a new study which found that most of the 42 species are severely threatened, yet just one of these is listed in the International Union for Conservation of Nature (IUCN)’s Red List of Threatened Species. Furthermore, over two thirds (67%) of the plants’ habitats are unprotected and at risk of destruction.
