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Full outdoor shot of a plant with leaves showing signs of fall foliage.  On the left side of the image, the leaves are predominantly a mixture of vibrant green and bright yellow, indicating a transition toward autumn colors. The leaves are quite large and present a variety of shades suggesting a shift in chlorophyll production. Some leaves also appear moist likely due to recent rain or high humidity. The background is out of focus but suggests ground or concrete.  On the right side of the image, the foliage is also a combination of green and some hints of yellow or orange, but the color gradient is less dramatic than on the left side.  Parts of the stems of the plant are visible and are a reddish-brown color. An apparatus, a white/light gray pole with small electronic devices or sensors attached to the leaves is present. The sensors appear to be clamped; this part of the image seems to be part of a monitoring or experimental setup for the plant physiology.  The lighting suggests an outdoor setting. Overall, the image compares the natural color changes in leaves to those possibly being observed and monitored via scientific measurement devices. Credit: Tohoku University

New Smart Agriculture Technology for Monitoring Plants

By | Agriculture, News

Researchers have developed a small, leaf-mounted sensor to monitor plant health and stress. This waterproof, Wi-Fi-enabled device tracks changes in leaf color, providing real-time data on plant conditions. Affordable and precise, it supports smart agriculture by enabling farmers to address stress-prone areas efficiently, boosting crop yields and resource management.

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Male cone of Pinus pinaster. Credit: Wikimedia

Maritime pine seeds remember temperature conditions

By | Forestry, News

Young maritime pine trees retain a memory of early temperature conditions through epigenetic changes, researchers report. These marks, influencing gene expression but not DNA, persist for up to two years post-germination. This discovery highlights how trees could be conditioned early to adapt to climate change, aiding sustainable forest management.

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Image: Plum blossom Prunus mume. Credit: Wikimedia

Decoding the cellular basis of floral fragrance

By | Botany, News

Researchers have created the first single-cell gene expression map of Prunus mume petals. Using advanced RNA sequencing, they identified six cell types driving floral scent production, pinpointing key genes like PmBAHD3. This breakthrough enhances understanding of fragrance biosynthesis, offering potential for breeding aromatic plants and innovating in horticulture and perfumery.

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Image: Full outdoor shot of a hillside forest. The foreground displays a slope covered with low-lying, brownish-green vegetation, interspersed with fallen branches and logs of varying lengths and shades of light brown and tan. Mid-ground shows numerous, tall, slender, light-gray, aspen-like trees, with a light-green canopy, evenly spaced, rising from the slope. Some pine trees, dark green in color, are visible among the aspens towards the back and right side of the image. These pine trees are primarily in the background and higher up on the slope. The sky is a vibrant, unblemished blue, with a few faint, wispy, white clouds. The overall impression is one of a coniferous and deciduous forest on a sunny day, situated on a gentle slope. credit: Northern Arizona University

Study shows climate change is hindering aspen tree maturity

By | Climate change, Forestry, News

Aspen forests face complex challenges from climate change, not just rising temperatures but interactions with drought, fire, and browsing. A 42% aspen mortality rate highlights vulnerabilities, especially for young trees in dry, low-elevation areas. Adaptive management and collaborative strategies are vital to support regeneration and maintain biodiversity in these essential ecosystems.

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Image: Image shows a heatmap of the corpse flower when it blooms, with the central appendix heating up to about 20 degrees Fahrenheit above ambient temperature. Credit: of Eric Schaller

Secrets of the Corpse Flower Revealed

By | Botany, News, Plant Science

The corpse flower’s rare, short-lived blooms emit a pungent scent to attract pollinators, fueled by heat from its spadix. Researchers uncovered genes driving heat and odor production, linking sulfur metabolism and amino acids like methionine and putrescine to its smell. This study advances understanding of thermogenesis and pollination in plants.

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USU biochemists Lance Seefeldt, left, and Zhi-Yong Yang are among an international, Gates Foundation-funded collaboration reporting new knowledge in the Nov. 6, 2024 issue of PNAS that could simplify genetic transfer of nitrogen fixation to food crops. (Photo Credit: USU/M. Muffoletto)

New research could simplify genetic transfer of nitrogen fixation to food crops

By | Agriculture, News, Plant Science

Scientists aim to engineer cereal crops like corn and rice to fix nitrogen directly from air, reducing fertilizer dependence. By identifying a minimal seven-gene pathway, they aim to embed nitrogen-fixing abilities into crops’ mitochondria and chloroplasts. This innovation could lower farming’s carbon footprint, combat hunger, and support space agriculture.

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Image: Foxtail barley. Credit:  👀 Mabel Amber, who will one day / Pixabay

Scientists shed light on an arms race between barley and a fungal pathogen

By | Agriculture, News, Plant Health

Barley plants produce unique antifungal compounds called hordedanes to defend against pathogens. Scientists identified 17 hordedanes that inhibit fungal growth, but a pathogen, Bipolaris sorokiniana, exploits these defenses to thrive. By neutralizing hordedanes, it extends its parasitic phase, showcasing the complex evolutionary battle between plants and pathogens.

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