Category

Plant Science

Image: The plant Arabidopsis thaliana. Credit: Salk Institute

Role of methylation in vernalization and photoperiod pathway: a potential flowering regulator?

By | News, Plant Science

Flowering, a critical developmental phase in a plant’s life, signifies its transition to reproductive maturity. The timing of flowering crucially impacts the plant’s reproductive period and adaptability to the environment. Achieving the correct flowering time is essential for successful fruit reproduction, regulated by both environmental cues and internal signals. Vernalization and photoperiod pathways orchestrate numerous floral signals, with methylation (histone, DNA, and RNA) emerging as a key epigenetic player in regulating plant growth and development, especially in flowering. Despite progress, understanding regulatory factors in vernalization and photoperiod pathways, as well as responses to internal and external signals, remains an ongoing challenge.

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Image: Scientists estimate that 3 in 4 plants that are yet to be described as new to science are likely already under threat of extinction, according to research published in the latest edition of the State of the World's Plants and Fungi report. Credit: Lydia Shellien-Walker/Royal Botanic Gardens, Kew

State of the world’s plants and fungi report

By | Botany, News, Plant Science

5th State of the World’s report, lays out the current condition of the world’s plants and fungi globally. Based on the work of 200 international researchers and covering the content of more than 25 cutting-edge scientific papers in its 11 chapters, the new report examines global drivers and patterns of biodiversity as well as critical knowledge gaps and how to address them.

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Image: Penstemon barbatus flowering in the Apache-Sitgreaves National Forest, Arizona. Credit: C. Wessinger (CC-BY 4.0, creativecommons.org/licenses/by/4.0/)

A few essential genetic differences tailor flowers to bee or hummingbird pollinators

By | News, Plant Science

Plants that rely on animal pollinators, such as insects or birds, have evolved distinctive suites of flower characteristics—known as “pollination syndromes”—that are tailored to the pollinator. Large differences in flower characteristics between wildflowers with different pollinators are achieved by a few key genetic differences, according to a new study.

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Image: close up of thin crop roots. Credit: Brigitte Werner / Pixabay

Genetically engineering associations between plants and nitrogen-fixing microbes could lessen dependence on synthetic fertilizer

By | Agriculture, News, Plant Science

Nitrogen is an essential nutrient for plant growth, but the overuse of synthetic nitrogen fertilizers in agriculture is not sustainable. In a review article a team of bacteriologists and plant scientists discuss the possibility of using genetic engineering to facilitate mutualistic relationships between plants and nitrogen-fixing microbes called “diazotrophs.” These engineered associations would help crops acquire nitrogen from the air by mimicking the mutualisms between legumes and nitrogen-fixing bacteria.

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Image: Caterpillar on an Arabidopsis plant. Credit: Kurt Stepnitz, 2006 University Relations - Michigan State University

How plants respond to environmental threats with proper defense

By | News, Plant Health, Plant Science

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.

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