Focus Collections

Focus Collections are an online collection of papers intended to supplement Plant Physiology^Ž Focus Issues.
Papers published in Plant Physiology^Ž two years prior to and those published for up to two years after the
Focus Issue will be included. Note: Inclusion in the Focus Collection will not change how an article
is to be cited.

Reactive Oxygen Species
The Reactive Oxygen Species Focus Issue first appeared in June 2006. This collection features articles published
since June 2004 and new content will be added through June 2008. Topics include reactive oxygen species signaling
and metabolism, oxidative stress homeostasis, and redox signaling research in plants.

Biology of Transpiration
The Biology of Transpiration Focus Issue first appeared in January 2007. This collection features articles
published since January 2005 and new content will be added through January 2009. Topics include all aspects
of water transport, from gene expression to global modeling, including root water uptake, regulation of water
flow by aquaporins, long-distance transport and xylem hydraulics, guard cell physiology and development,
and mechanisms controlling transpiration from the leaf to the globe.

Legume Biology
The Legume Focus Issue first appeared in June 2007. This collection features articles published since
June 2005 and new content will be added through June 2009. Topics include genomics, model legumes,
interactions with microorganisms, regulations, signaling, and development.

Vector Systems for Plant Research and Biotechnology
The Vector Systems for Plant Research and Biotechnology Focus Issue first appeared in December 2007. This
collection features articles published since December 2005 and new content will be added through December 2009.
Topics include all aspects of plant expression vector systems designed for state-of-the-art experimentation, including
novel systems for multiple gene expression, protein tagging, induction and suppression of gene silencing, specialized
vectors for monocot transformation, and virus-based vectors.

Plant-Herbivore Interactions
The Plant-Herbivore Interactions Focus Issue first appeared in March 2008. This collection features
articles published since March 2006 and new content will be added through March 2010. Topics include
molecular and biochemical aspects of the interaction, including recognition of herbivory, signaling pathways
that regulate host plant defense, volatile signals, tritrophic interactions, plant defense chemistry, manipulation
of plant defenses by herbivores, and natural variation in plant resistance to herbivores.

Membrane Trafficking
The Membrane Trafficking Focus Issue first appeared in August 2008. This collection features articles
published since August 2006 and new content will be added through August 2010. Topics include structural
and regulatory aspects of membrane trafficking and those that dissect functional connections between
membrane trafficking and growth, development, defense, and signaling-related processes.

The Grasses
The Grasses Focus Issue first appeared in January 2009. This collection features articles published since
January 2007 and new content will be added through January 2011. Topics will include analysis of grass genomes,
transcriptomes, proteomes, and metabolomes along with articles describing seminal discoveries on grass biology,
development, biochemistry, and physiology. For inclusion in the collection, we will highlight particularly articles
that include a significant comparative component with multiple Poaceae species, such that the results may be expected
to apply to multiple species of grasses or to the entire grass family.

Plant Interactions with Bacterial Pathogens
The Plant Interactions Focus Issue first appeared in August 2009. This collection features articles published since
August 2007 and new content will be added through August 2011. Topics include mechanisms of recognition
as well as bacterial and plant molecules mediating the interactions. Articles reporting on all areas of plant-bacterial
interactions, including from gene expression to proteomics to biochemistry, will be included in the collection.