Plant Physiology

Focus Collections are an online collection of papers intended to supplement Plant Physiology® Focus Issues. Papers published in Plant Physiology® two years prior to and those published for up to two years after the Focus Issue will be included. Reactive Oxygen Species The Reactive Oxygen…

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Plants have evolved a variety of mechanisms to synchronize flowering with their environment to optimize reproductive success. Many species flower in spring when the photoperiod increases and the ambient temperatures become warmer. Winter annuals and biennials have evolved repression mechanisms that prevent…

Plants sense changes in day length (= photoperiod) as a reliable seasonal cue to regulate important developmental transitions such as flowering. Integration of various external light information into the circadian clock-controlled mechanisms enables plants to precisely measure photoperiod changes in…

Biogeographic studies suggest that the degree of fatty acid unsaturation in oilseeds has played a major role in adapting plants to temperature. The enzymes that are primarily responsible for producing polyunsaturated fatty acids in seed oils are the microsomal ω-6 and ω-3 fatty acid desaturases FAD2…

Current available evidence suggests that the location of the sites of evaporation is important for many questions across plant physiology, including patterns of leaf isotopic enrichment, maintenance of mesophyll water status, stomatal regulation, and interpretation of measured stomatal and leaf hydraulic…

Calmodulin (CaM) and closely related CaM-like polypeptides are principal sensors of Ca2+ signals. The plant-specific IQ67 DOMAIN (IQD) family has emerged as possibly the largest class of CaM-interacting proteins with undefined molecular functions and biological roles. Bürstenbinder et al. (Plant Physiol.…

Herbivory-induced plant cell wall modifications play an important role in deterring herbivory. Modified cell walls not only act as physical defenses against herbivores by enhancing the mechanical hardness of plant tissues but also reduce the digestibility of food for herbivores, thereby functioning as…