AudioStanford, CA— Photosynthesis provides fixed carbon and energy for nearly all life on Earth, yet many aspects of this fascinating process...
Explore this Story
Audio Stanford, CA—Floods and droughts are increasingly in the news, and climate experts say their frequency will only go up in the future....
Explore this Story
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 from...
Explore this Story
AudioStanford, CA— Evolution is based on diversity, and sexual reproduction is key to creating a diverse population that secures...
Explore this Story
AudioStanford, CA— As every gardner knows, nitrogen is crucial for a plant’s growth. But nitrogen absorption is inefficient. This means that...
Explore this Story
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...
Explore this Story
AudioStanford, CA—Inside every plant cell, a cytoskeleton provides an interior scaffolding to direct construction of the cell’s walls, and...
Explore this Story
Washington, D.C.— Postdoctoral fellow, Rubén Rellán-Álvarez at the Department of Plant Biology has been awarded the prestigious Marschner Young Scientist Award by the International Plant Nutrition...
Explore this Story

Pages

Fresh water constitutes less than 1% of the surface water on earth, yet the importance of this simple molecule to all life forms is immeasurable. Water represents the most vital reagent for chemical reactions occurring in a cell. In plants, water provides the structural support necessary for plant...
Explore this Project
Carnegie researchers recently constructed genetically encoded FRET sensors for a variety of important molecules such as glucose and glutamate. The centerpiece of these sensors is a recognition element derived from the superfamily of bacterial binding protiens called periplasmic binding protein (...
Explore this Project
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....
Explore this Project
Steroids are important hormones in both animals and plants. They bulk up plants just as they do human athletes, but the pathway of molecular signals that tell the genes to boost growth and development is more complex in plant cells than in animal cells. Unlike animals, plants do not have glands to...
Meet this Scientist
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 cell...
Meet this Scientist
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...
Meet this Scientist
You May Also Like...
Valdivia, Chile, and Washington, D.C.—Cancer cells break down sugars and produce the metabolic acid lactate at a much higher rate than normal cells. This phenomenon provides a telltale sign that...
Explore this Story
Stanford, CA — Plants grow upward from a tip of undifferentiated tissue called the shoot apical meristem. As the tip extends, stem cells at the center of the meristem divide and increase in numbers....
Explore this Story
Stanford, CA—The Howard Hughes Medical Institute (HHMI) and the Simons Foundation have awarded José Dinneny, of Carnegie’s Department of Plant Biology an HHMI-Simons Faculty Scholar grant. He is one...
Explore this Story

Explore Carnegie Science

Carnegie Science, Carnegie Institution, Carnegie Institution for Science, Max Planck Institute of Biochemistry
September 21, 2017

Stanford, CA— How do green algae grow so quickly?  Two new collaborations offer insight into how these organisms siphon carbon dioxide from the air for use in photosynthesis, a key factor in their ability to rapidly take over a swimming pool or pond. Understanding this process may someday help researchers improve the growth rate of agricultural crops such as wheat and rice.

In two studies published this week in the journal Cell, a Princeton-led team with collaborators from Carnegie and the Max Planck Institute of Biochemistry reported the first detailed inventory of the cellular compartment called the pyrenoid, which algae use to collect and concentrate carbon dioxide, making the

Carnegie Science, Carnegie Institution, Carnegie Institution for Science,
July 17, 2017

Palo Alto, CA— The red algae called Porphyra and its ancestors have thrived for millions of years in the harsh habitat of the intertidal zone—exposed to fluctuating temperatures, high UV radiation, severe salt stress, and desiccation.

Red algae comprise some of the oldest non-bacterial photosynthetic organisms on Earth, and one of the most-ancient of all multicellular lineages. They are also fundamentally integrated into human culture and economics around the globe. Some red algae play a major role in building coral reefs while others serve as “seaweed” foods that are integral to various societies. Porphyra is included in salads (as are related genera of algae), is called “nori”

June 21, 2017

Palo Alto, CA— Algae dominate the oceans that cover nearly three-quarters of our planet, and produce half of the oxygen that we breathe. And yet fewer than 10 percent of the algae have been formally described in the scientific literature, as noted in a new review co-authored by Carnegie’s Arthur Grossman in Trends in Plant Science.

Algae are everywhere. They are part of crusts on desert surfaces and form massive blooms in lakes and oceans. They range in size from tiny single-celled organisms to giant kelp.

Algae also play crucial roles in human life. People have eaten “seaweed” (large macroalgae) for millennia. But algae can also represent a health hazard when toxic blooms

June 15, 2017

Pew announced the 2017 classes of biomedical scholars, Latin American fellows, and Pew-Stewart Scholars for Cancer Research today. Cesar-Cuevas Velazquez of the Department of Plant Biology Dinneny lab is among 37 researchers selected.

These new researchers join more than 900 biomedical scientists from many different research backgrounds. “The scholars and fellows will gather at Pew’s annual meeting for the next four years to discuss their research, learn from peers in other fields, and form lasting bonds that will help propel and stimulate cutting-edge research, “stated the Pew press release.

Velazquez is a postdoctoral researcher in the Dinneny lab. He received his Ph. D.

No content in this section.

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 to genes for which no function had

Today, humanity is increasingly aware of the impact it has on the environment and the difficulties caused when the environment impacts our communities. Environmental change can be particularly harsh when the plants we use for food, fuel, feed and fiber are affected by this change. High salinity is an agricultural contaminant of increasing significance. Not only does this limit the land available for use in agriculture, but in land that has been used for generations, the combination of irrigation and evaporation gradually leads to increasing soil salinity.

The Dinneny lab focuses on understanding how developmental processes such as cell-type specification regulate responses to

Fresh water constitutes less than 1% of the surface water on earth, yet the importance of this simple molecule to all life forms is immeasurable. Water represents the most vital reagent for chemical reactions occurring in a cell. In plants, water provides the structural support necessary for plant growth. It acts as the carrier for nutrients absorbed from the soil and transported to the shoot. It also provides the chemical components necessary to generate sugar and biomass from light and carbon dioxide during photosynthesis. While the importance of water to plants is clear, an understanding as to how plants perceive water is limited. Most studies have focused on environmental conditions

Carnegie will receive Phase II funding through Grand Challenges Explorations, an initiative created by the Bill & Melinda Gates Foundation that enables individuals worldwide to test bold ideas to address persistent health and development challenges. Department of Plant Biology Director Wolf Frommer,  with a team of researchers from the International Rice Research Institute, Kansas State University, and Iowa State University, will continue to pursue an innovative global health research project, titled “Transformative Strategy for Controlling Rice Blight.”

Rice bacterial blight is one of the major challenges to food security, and this project aims to achieve broad, durable

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 for

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 and

One way to adapt to climate change is to understand how plants can thrive in the changing environment. José Dinneny looks at the mechanisms that control environmental responses in plants, including responses to salty soils and different moisture conditions—work that provides the foundation for developing crops for the changing climate.

The Dinneny  lab focuses on understanding how developmental processes such as cell-type specification regulate responses to environmental change. Most studies have considered the organ or even the whole organism as a single responsive unit and ignore the potential diversity of responses by the various cell-types composing an organism. Dinneny has

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 building genome-wide