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Roles of phytochromes as regulators of adaptive plasticiy in plant canopies.

We are interested in understanding how plants use the phytochromes to obtain information about the proximity of other plants.

In many ecological scenarios, the success of the individual plant is defined by the behavioral decisions that it makes when confronted with the risks of competition with other plants and biomass losses to consumer organisms (such as pathogens and herbivorous insects). These decisions involve expression of shade avoidance responses and induced chemical defenses. Because these responses are costly, they frequently engender resource allocation dilemmas. We investigate how plants use the phytochromes and other specific photoreceptors to obtain information about the proximity of other plants and the signaling networks that translate this information into adaptive behavioral decisions.

Special Issue on Plant Behavior, Ballaré & Trewavas (2009).
I. Cerrudo, M. E. Caliri-Ortiz, M. M. Keller, M. E. Degano, P. V. Demkura, C. L. Ballaré
Exploring growth-defense tradeoffs in Arabidopsis. Phytochrome B inactivation requires JAZ10 to suppress plant immunity but not to trigger shade avoidance responses
Plant Cell And Environment, 40: 635-644.
L. E. Cortés, B. T. Weldegergis, H. E. Boccalandro, M. Dicke, and C. L. Ballaré
Trading direct for indirect defense? Phytochrome B inactivation in tomato attenuates direct anti-herbivore defenses whilst enhancing volatile-mediated attraction of predators
New Phytologist, 212: 1057-1071
C. A. Mazza, C. L. Ballaré
Photoreceptors UVR8 and phytochrome B cooperate to optimize plant growth and defense in patchy canopies
New Phytologist, 207: 4-9
C. V. González, M. L. Fanzone, L. E. Cortés, R. Bottini, D. C. Lijavetzky, C. L. Ballaré, H. E. Boccalandro
Fruit-localized photoreceptors increase phenolic compounds in berry skins of field-grown Vitis vinifera L. cv. Malbec
Phytochemistry, 110: 46-57
C. L. Ballaré
Light Regulation of Plant Defense
Annual Review of Plant Biology 65, 335-363
J. E. Moreno, C. L. Ballaré
Phytochorme regulation of plant immunity in vegetation canopies
Journal of Chemical Ecology, 40: 848-857
M. D. Cargnel, P. V. Demkura, C. L. Ballaré
Linking phytochrome to plant immunity: low red:far-red ratios increase Arabidopsis susceptibility to Botrytis cinerea by reducing the biosynthesis of indolic glucosinolates and camalexin
New Phytologist, 204: 342-345
M. Leone, M. M. Keller, I. Cerrudo, C. L. Ballaré
To grow or defend? Low red:far-red ratios reduce jasmonate sensitivity in Arabidopsis seedlings by promoting DELLA degradation and increasing JAZ10 stability
New Phytologist, 204: 355-367
P. E. Gundel, R. Pierik, L. Mommer, C. L. Ballaré
Competing neighbors: light perception and root function
Oecologia, 176: 1-10
R. Pierik, C. L. Ballaré and M. Dicke
Ecology of plant volatiles: taking a plant community perspective
Plant, Cell and Environment, 37: 1845-1853
Ballaré C.L., Gross K. L., Monson R. K.
Zooming in on plant interactions
Oecologia, 171: 601-603.
M. M. Izaguirre, C.A. Mazza, M. S. Astigueta, A. M. Ciarla and Ballaré C. L.
No time for candy: passionfruit (Passiflora edulis) plants down-regulate damage-induced extra floral nectar production in response to light signals of competition
Oecologia 173, 213-221
C. L. Ballaré, C. A. Mazza, A. T. Austin and R. Pierik
Canopy light and plant health
Plant Physiology 160, 145-155 (commissioned Update)
I. Cerrudo, M. M. Keller, M. D. Cargnel, P. V. Demkura, M. de Wit, M. S. Patitucci, R. Pierik, C. M. J. Pieterse and C. L. Ballaré
Low Red:Far-Red ratios reduce Arabidopsis resistance to Botrytis cinerea and jasmonate responses via a COI1-JAZ10-dependent, salicylic acid-independent mechanism
Plant Physiology 158, 2042-2052.
C. L. Ballaré
Jasmonate-induced defenses: a tale of intelligence, collaborators and rascals
Trends in Plant Science 16, 249-257.
M. M. Keller, Y. Jaillais, U. V. Pedmale, J. E. Moreno, J. Chory and C. L. Ballaré
Cryptochrome 1 and phytochrome B control shade-avoidance responses in Arabidopsis via partially-independent hormonal cascades
The Plant Journal 67, 195-207.
C. L. Ballaré
Illuminated behaviour: phytochrome as a key regulator of light foraging and plant anti-herbivore defence
Plant Cell and Environment 32, 713-725.
J. E. Moreno, Y. Tao, J. Chory and C. L. Ballaré
Ecological modulation of plant defense via phytochrome control of jasmonate sensitivity
Proceedings of the National Academy of Sciences of the United States of America 106, 4935-4940.
Y. Tao, J. L. Ferrer, K. Ljung, F. Pojer, F. Hong, J. A. Long, L. Li, J. E. Moreno, M. E. Bowman, L. J. Ivans, Y. Cheng, J. Lim, Y. Zhao, C. L. Ballaré, G. Sandberg, J. P. Noel and J. Chory
Rapid synthesis of auxin via a new tryptophan-dependent pathway is required for shade avoidance in plants
Cell 133, 164-176.
M. M. Izaguirre, C. A. Mazza, M. Biondini, I. T. Baldwin and C. L. Ballaré
Remote sensing of future competitors: impacts on plant defenses
Proceedings of the National Academy of Sciences of the United States of America 103, 7170-7174.