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James P. Syvertsen

phenotypic plasticity. PGRs originate in roots or shoots and play a role in internal signaling that regulates morphology and physiological responses in distal plant parts. Changes in the presence, balance, and distribution of PGRs communicate developmental

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James F. Cahill and Eric G. Lamb

including the traits associated with competitive ability in plants, the costs and benefits of plasticity in those traits, and how plants respond to multiple challenges such as competition and herbivory. These questions are at the foundation of important

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Thomas E. Marler, Vivian Lee, and Christopher A. Shaw

al., 2002 ; Shaw et al., 2007 ). Our recent focus has been to understand more fully the environmental and anthropogenic factors that influence biosynthetic and allocational plasticity of these compounds and the genetic, developmental, or

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Gordon J. Lightbourn, John R. Stommel, and Robert J. Griesbach

resulting phenotypic plasticity are key contributors to the evolution of cellular diversity in plants. Anthocyanin pigmentation in C. annuum is influenced by an incompletely dominant gene, Anthocyanin ( A ) ( Peterson, 1959 ). A second gene, modifier

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Raquel Enedina Medina-Carrillo, Samuel Salazar-García, Jorge Armando Bonilla-Cárdenas, Juan Antonio Herrera-González, Martha Elva Ibarra-Estrada, and Arturo Álvarez-Bravo

plant species responds with considerable physiological and genetic plasticity to maintain its dominant status in each habitat. During plant phenology, the concentration of SMs varies between species, although their quantity and diversity is not

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Thomas E. Marler and Christopher A. Shaw

in concentration. Phenotypic plasticity of Cycas seed sterols appears highly constrained, possibly to ensure a fixed adequate sterol and steryl glucoside supply in mature seed gametophytes regardless of abundant variation in developmental factors

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Amanda J. Hershberger, David A. Knauft, and Carol D. Robacker

.C. Raulston Arboretum at North Carolina State University, Raleigh, NC, in the 1980s. It has been used for dune stabilization and as an ornamental. Phenotypic plasticity, or environmentally dependent phenotypic expression, is an important consideration in a

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Thomas E. Marler and Nirmala Dongol

Understanding the developmental patterns and factors that control expansion of vegetative and reproductive organs is of fundamental importance for refining conservation protocols for rare plants. For example, the period of vulnerability to arthropod

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Erick Amombo, Longxing Hu, Jibiao Fan, Zhengrong Hu, and Jinmin Fu

activity within the fragments of control and homogeneous regime ( Fig. 5B ). Discussion Physiological and morphological plasticity are the main factors that facilitate acquisition of materials from nonuniform habitats. Grime and Mackey (2002) and de

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Arthur Villordon, Don LaBonte, Julio Solis, and Nurit Firon

plots, the gradient between extreme LG and SR samples indicated a quantitative component in the determination of the developmental fate of ARs, i.e., LG, PR, or SR. Morphological plasticity in response to competition effects has been investigated in