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ScienceDaily: Plants & Animals News |
| Yeast and bacteria together biosynthesize plant hormones for weed control Posted: 18 Sep 2021 05:58 AM PDT Plants regulate their growth using hormones, including a group called strigolactones that prevent excessive budding and branching. Strigolactones also help plant roots form symbiotic relationships with microorganisms that allow the plant to absorb nutrients from the soil. These two factors have led to agricultural interest in using strigolactones to control the growth of weeds and root parasites, as well as improving nutrient uptake. These root-extruding compounds also stimulate germination of witchweeds and broomrapes, which can cause entire crops of grain to fail, making thorough research essential prior to commercial development. Now scientists have synthesized strigolactones from microbes. |
| Posted: 17 Sep 2021 01:11 PM PDT Imagine having your own digital personal chef; ready to cook whatever you want, tailoring the shape, texture, and flavor just for you -- all at the push of a button. Engineers have been working on doing just that, using lasers for cooking and 3D printing technology for assembling foods. In their new study they discovered that laser-cooked meat shrinks 50% less, retains double the moisture content, and shows similar flavor development to conventionally cooked meat. |
| Plants evolved complexity in two bursts -- with a 250-million-year hiatus Posted: 16 Sep 2021 11:28 AM PDT A new method for quantifying plant evolution reveals that after the onset of early seed plants, complexity halted for 250 million years until the diversification of flowering plants about 100 million years ago. |
| Staying young, from the cells on up Posted: 16 Sep 2021 08:45 AM PDT Researchers have discovered a new multi-enzyme complex that reprograms metabolism and overcomes 'cellular senescence,' when aging cells stop dividing. |
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