Scientists have developed drought and salt-resistant tomato plants by discovering a new stress-response mechanism. By engineering these plants to produce a synthetic molecule that activates this mechanism, they enhance the plants’ resilience. This breakthrough could ensure stable tomato production despite adverse climate conditions, supporting global food security.
Scientists developed a system to create tomato plants with the full genetic material of both parents. By replacing meiosis with mitosis, they produced clonal sex cells, enabling offspring with complete parental genomes. This technique promises more robust, high-yield crops, potentially transforming agricultural practices.
Researchers describe mechanisms relating to the development of the tomato plant (Solanum lycopersicum) and point to ways of creating novel technologies for tomato yield improvement.
Regardless of how one says “tomato,” they all contain tomatine, a toxin in the plant’s green fruit, leaves, and roots. Tomatoes produce the bitter-tasting compound—a major plant-specialized metabolite secreted from the roots—to defend against pathogens and foragers.
Rising sea levels due to climate change and artificial irrigation cause soil salinity to increase. This has a negative impact on agriculture, including viticulture. The plants die, yields decrease. Researchers have therefore studied a wild grapevine of higher salt tolerance. Their goal is to identify the genetic factors that make the grapevine resilient. They can then be inserted into commercial varieties, thus securing viticulture.
Biologists have found evidence for evolutionary “syndromes”—sets of traits that occur together—that help to explain how tomatoes first evolved their distinctive blend of color, sweetness, acidity and aroma. The research, not only shines a light on how fruits evolve in the wild, but will also be valuable to crop-improvement efforts aimed at breeding more nutritious and appealing varieties of fruits.
Farmers usually plant so-called cover crops after harvesting their main crop in the Fall. This prevents erosion of the soil and nutrient leaching. The roots of these crops also stabilize the structure of the soil. It had been assumed up to now that a mixture of different cover crops would result in particularly intensive rooting. However, a recent study found only limited evidence that this is the case. Instead, mixed cover crops grow thinner roots than when just one single type of cover crop is planted. This result was unexpected. It documents how little is currently understood about the interactions between plant roots.
Researchers inoculated oilseed rape plants with a species of fungus that is known for its ability to combat pest insects. Utilising the relationship between beneficial fungi and crop plants may introduce a new era of agriculture where the plant resilience is improved and the ecological footprint of traditional/chemical pesticides is minimised.
Researchers have discovered a new species of Artemisia — Artemisia qingheensisin – in China’s Xinjiang Uygur Autonomous Region.
Developing disease-resistant, high-quality improved crop varieties to benefit agricultural producers and consumers may seem like a “hairy” task, but scientists may have gotten to the root of the issue.
