Toxic "red tide" algal bloom. Image purchased from Shutterstock.
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...
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Photo of flowering Arabidopsis thaliana purchased from Shutterstock.
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...
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Figure from Energy and Environmental Science paper
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...
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Senna tora photo courtesy of Shutterstock.
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....
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PolyP courtesy of Arthur Grossman and Emanuel Sanz-Luque
Palo Alto, CA— In a changing climate, understanding how organisms respond to stress conditions is increasingly important. New work led by Carnegie’s Arthur Grossman and Emanuel Sanz-Luque...
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Moises Exposito-Alonso
Palo Alto, CA— Carnegie’s Moises Exposito-Alonso has been selected for a National Institutes of Health Director’s Early Independence Award, which recognizes “outstanding...
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Pennycress
Palo Alto, CA— Carnegie’s Sue Rhee and Moises Exposito-Alonso are leading members of an initiative to identify genes related to stress tolerance in the mustard plant field pennycress....
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Moises Exposito-Alonso
Palo Alto, CA— Carnegie evolutionary geneticist Moises Exposito-Alonso was awarded a Max Planck Society’s Otto Hahn Medal for early career excellence. The prize is endowed with 7,500...
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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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Plants are not as static as you think. David Ehrhardt combines confocal microscopy with novel visualization methods to see the three-dimensional movement  within live plant cells to reveal the other-worldly cell choreography that makes up plant tissues. These methods allow his group to explore...
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Matthew Evans wants to provide new tools for plant scientists to engineer better seeds for human needs. He focuses on one of the two phases to their life cycle. In the first phase, the sporophyte is the diploid generation—that is with two similar sets of chromosomes--that undergoes meiosis to...
Meet this Scientist
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...
Meet this Scientist
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Carnegie Plant Biology Acting Director Sue Rhee and staff scientist José Dinneny and their labs are part of a research effort led by The Donald Danforth Plant Science...
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AudioStanford, CA—Inside every plant cell, a cytoskeleton provides an interior scaffolding to direct construction of the cell’s walls, and thus the growth of the organism as a whole. Environmental...
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Stanford, CA —Light is not only the source of a plant’s energy, but also an environmental signal that instructs the growth behavior of plants. As a result, a plant’s sensitivity to light is of great...
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Toxic "red tide" algal bloom. Image purchased from Shutterstock.
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

Photo of flowering Arabidopsis thaliana purchased from Shutterstock.
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

Figure from Energy and Environmental Science paper
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

Senna tora photo courtesy of Shutterstock.
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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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

Matthew Evans wants to provide new tools for plant scientists to engineer better seeds for human needs. He focuses on one of the two phases to their life cycle. In the first phase, the sporophyte is the diploid generation—that is with two similar sets of chromosomes--that undergoes meiosis to produce cells called spores. Each spore divides forming a single set of chromosomes (haploid) --the gametophyte--which produces the sperm and egg cells.

Evans studies how the haploid genome is required for normal egg and sperm function. In flowering plants, the female gametophyte, called the embryo sac, consists of four cell types: the egg cell, the central cell, and two types of

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

Devaki Bhaya wants to understand how environmental stressors, such as light, nutrients, and viral attacks are sensed by and affect photosynthetic microorganisms. She is also interested in understanding the mechanisms behind microorganism movements, and how individuals in groups communicate, evolve, share resources. To these ends, she focuses on one-celled, aquatic cyanobacteria, in the lab with model organisms and with organisms in naturally occurring communities.

 Phototaxis is the ability of organisms to move directionally in response to a light source.  Many cyanobacteria exhibit phototaxis, both towards and away from light. The ability to move into optimal light

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