Plant Science Stories
Decoding the chemical vocabulary of plants
AudioStanford, CA—Plants spend their entire lifetime rooted to one spot. When faced with a bad situation, such as a swarm of hungry...
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New technique will accelerate genetic characterization of photosynthesis
AudioStanford, CA— Photosynthesis provides fixed carbon and energy for nearly all life on Earth, yet many aspects of this fascinating process...
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Drought hormones measured
Audio Stanford, CA—Floods and droughts are increasingly in the news, and climate experts say their frequency will only go up in the future....
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Roots and the Hidden Half of Plant Biology
March 27, 2014 Dr. José R. Dinneny, Carnegie Institution for Science, Department of Plant Biology We see plants everywhere in our daily lives, but half of the plant, the root system, is hidden...
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Nectar: A sweet reward from plants to attract pollinators
AudioStanford, CA— Evolution is based on diversity, and sexual reproduction is key to creating a diverse population that secures...
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Nitrogen-tracking tools for better crops and less pollution
AudioStanford, CA— As every gardner knows, nitrogen is crucial for a plant’s growth. But nitrogen absorption is inefficient. This means that...
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Carnegie’s Chen recognized for contributions to plant science
Stanford, CA—Carnegie’s Li-Quing Chen, recipient of a Tansley Medal for Excellence in Plant Science, announced late last year, is honored with an editorial and minireview in New Phytologist this...
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Plant cell architecture: Growth toward a light source
AudioStanford, CA—Inside every plant cell, a cytoskeleton provides an interior scaffolding to direct construction of the cell’s walls, and...
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Digital genome
Revolutionary progress in understanding plant biology is being driven through advances in DNA sequencing technology. Carnegie plant scientists have played a key role in the sequencing and genome annotation efforts of the model plant Arabidopsis thaliana and the soil alga ...
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Meet Carnegie Scientists
Sue Rhee
Plants are essential to life on Earth and provide us with food, fuel, clothing, and shelter.  Despite all this, we know very little about how they do what they do. Even for the best-studied species, such as Arabidopsis thaliana --a wild mustard studied in the lab--we know about less than 20%...
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Moises Exposito-Alonso
Evolutionary geneticist Moises Exposito-Alonso joined the Department of Plant Biology as a staff associate in September 2019. He investigates whether and how plants will evolve to keep pace with climate change by conducting large-scale ecological and genome sequencing experiments. He also...
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Zhiyong Wang - Acting Director
Zhiyong Wang was appointed acting director of Department of Plant Biology in 2018. Wang’s research aims to understand how plant growth is controlled by environmental and endogenous signals. Being sessile, plants respond environmental changes by altering their growth behavior. As such, plants...
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Nectar: A sweet reward from plants to attract pollinators
AudioStanford, CA— Evolution is based on diversity, and sexual reproduction is key to creating a diverse population that secures competitiveness in nature. Plants had to solve a problem: they needed...
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New Databases Harvest a Rich Bounty of Information on Crop Plant Metabolism
Stanford, CA — The Plant Metabolic Network (http://www.plantcyc.org/), which is based at Carnegie’s Department of Plant Biology, has launched four new online databases that offer an unprecedented...
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Hormones that guide root growth rates revealed
A plant's roots grow and spread into the soil, taking up necessary water and minerals. The tip of a plant's root is a place of active cell division followed by cell elongation, with different...
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Toxic "red tide" algal bloom. Image purchased from Shutterstock.
Unraveling a mystery of dinoflagellate genomic architecture
May 3, 2021

Palo Alto, CA—New work from a Stanford University-led team of researchers including Carnegie’s Arthur Grossman and Tingting Xiang unravels a longstanding mystery about the relationship between form and function in the genetic material of a diverse group of algae called dinoflagellates.

Their findings, published in Nature Genetics, have implications for understanding genomic organizational principles of all organisms.

Dinoflagellates include more than 2,000 species of marine and freshwater plankton, many of which are photosynthetic, and some of which also ingest other organisms for food. They play a wide variety of roles in various ecosystems, including extreme

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Photo of flowering Arabidopsis thaliana purchased from Shutterstock.
A plant’s nutrient-sensing abilities can modulate its response to environmental stress
February 11, 2021

Palo Alto, CA— Understanding how plants respond to stressful environmental conditions is crucial to developing effective strategies for protecting important agricultural crops from a changing climate. New research led by Carnegie’s Zhiyong Wang, Shouling Xu, and Yang Bi reveals an important process by which plants switch between amplified and dampened stress responses. Their work is published by Nature Communications.

To survive in a changing environment, plants must choose between different response strategies, which are based on both external environmental factors and internal nutritional and energy demands. For example, a plant might either delay or accelerate its

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Figure from Energy and Environmental Science paper
Engineering light availability for crop production—a solution for coming challenges?
February 1, 2021

Palo Alto, CA— What if we could increase a plant’s productivity by modifying the light to which it is exposed? This could increase the yield of important food and biofuel crops and also combat climate change by sequestering atmospheric carbon.

In a recent perspective piece in Energy and Environmental Science, Carnegie’s Arthur Grossman and Petra Redekop joined colleagues from Stanford University—Larissa Kunz, Matteo Cargnello, and Arun Majumdar—and University of Illinois Urbana Champaign’s Donald Ort to argue that specially engineered lighting modifications through the use of photoluminescent material could drive a next big leap in the green

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Senna tora photo courtesy of Shutterstock.
Can we harness a plant’s ability to synthesize medicinal compounds?
November 24, 2020

Palo Alto, CA— Anthraquinones are a class of naturally occurring compounds prized for their medicinal properties, as well as for other applications, including ecologically friendly dyes. Despite wide interest, the mechanism by which plants produce them has remained shrouded in mystery until now.

New work from an international team of scientists including Carnegie’s Sue Rhee reveals a gene responsible for anthraquinone synthesis in plants.  Their findings could help scientists cultivate a plant-based mechanism for harvesting these useful compounds in bulk quantities.

“Senna tora is a legume with anthraquinone-based medicinal properties that have long

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Digital genome

Revolutionary progress in understanding plant biology is being driven through advances in DNA sequencing technology. Carnegie plant scientists have played a key role in the sequencing and genome annotation efforts of the model plant Arabidopsis thaliana and the soil alga Chlamydomonas reinhardtii. Now that many genomes from algae to mosses and trees are publicly available, this information can be mined using bioinformatics to build models to understand gene function and ultimately for designing plants for a wide spectrum of applications.

 Carnegie researchers have pioneered a genome-wide gene association network Aranet that can assign functions

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Zhiyong Wang - Acting Director

Zhiyong Wang was appointed acting director of Department of Plant Biology in 2018.

Wang’s research aims to understand how plant growth is controlled by environmental and endogenous signals. Being sessile, plants respond environmental changes by altering their growth behavior. As such, plants display high developmental plasticity and their growth is highly sensitive to environmental conditions. Plants have evolved many hormones that function as growth regulators, and growth is also responsive to the availability of nutrients and energy (photosynthates).

To understand how plant cells perceive and transduce various regulatory signals, and how combinations of complex

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Arthur Grossman

Arthur Grossman believes that the future of plant science depends on research that spans ecology, physiology, molecular biology and genomics. As such, work in his lab has been extremely diverse. He identifies new functions associated with photosynthetic processes, the mechanisms of coral bleaching and the impact of temperature and light on the bleaching process.

He also has extensively studied the blue-green algae Chlamydomonas genome and is establishing methods for examining the set of RNA molecules and the function of proteins involved in their photosynthesis and acclimation. He also studies the regulation of sulfur metabolism in green algae and plants.  

Grossman

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Moises Exposito-Alonso

Evolutionary geneticist Moises Exposito-Alonso joined the Department of Plant Biology as a staff associate in September 2019. He investigates whether and how plants will evolve to keep pace with climate change by conducting large-scale ecological and genome sequencing experiments. He also develops computational methods to derive fundamental principles of evolution, such as how fast natural populations acquire new mutations and how past climates shaped continental-scale biodiversity patterns. His goal is to use these first principles and computational approaches to forecast evolutionary outcomes of populations under climate change to anticipate potential future

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Sue Rhee

Plants are essential to life on Earth and provide us with food, fuel, clothing, and shelter.  Despite all this, we know very little about how they do what they do. Even for the best-studied species, such as Arabidopsis thaliana --a wild mustard studied in the lab--we know about less than 20% of what its genes do and how or why they do it. And understanding this evolution can help develop new crop strains to adapt to climate change.  

Sue Rhee wants to uncover the molecular mechanisms underlying adaptive traits in plants to understand how these traits evolved. A bottleneck has been the limited understanding of the functions of most plant genes. Rhee’s group is

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