The Current Opinion journals were developed out of the recognition that it is increasingly difficult for specialists to keep up to date with the expanding volume of information published in their subject. Elsevier’s Current Opinion journals comprise of 13 leading titles in life sciences and adjacent fields.

Current Opinion in Plant Biology

IMPACT FACTOR: 9.431
5-Year Impact Factor: 9.933
Issues per year: 6 issues
Editorial Board

Current Opinion in Plant Biology

The Current Opinion journals were developed out of the recognition that it is increasingly difficult for specialists to keep up to date with the expanding volume of information published in their subject. In Current Opinion in plant Biology, we help the reader by providing in a systematic manner:
1. The views of experts on current advances in plant biology in a clear and readable form.
2. Evaluations of the most interesting papers, annotated by experts, from the great wealth of original publications.

Division of the subject into sections The subject of plant biology is divided into themed sections which are reviewed regularly to keep them relevant. Presently they are:
Growth and development - Genome studies and molecular genetics (+ Plant biotechnology every other year) - Physiology and metabolism - Biotic interactions - Cell signalling and gene regulation - Cell biology

Selection of topics to be reviewed Section Editors, who are major authorities in the field, are appointed by the Editors of the journal. They divide their section into a number of topics, ensuring that the field is comprehensively covered and that all issues of current importance are emphasised. Section Editors commission reviews from authorities on each topic that they have selected.

Reviews Authors write short review articles in which they present recent developments in their subject, emphasising the aspects that, in their opinion, are most important. In addition, they provide short annotations to the papers that they consider to be most interesting from all those published in their topic over the previous year.

Editorial Overview Section Editors write a short overview at the beginning of the section to introduce the reviews and to draw the reader's attention to any particularly interesting developments.

Ethics in Publishing: General Statement The Editor(s) and Publisher of this Journal believe that there are fundamental principles underlying scholarly or professional publishing. While this may not amount to a formal 'code of conduct', these fundamental principles with respect to the authors' paper are that the paper should: i) be the authors' own original work, which has not been previously published elsewhere, ii) reflect the authors' own research and analysis and do so in a truthful and complete manner, iii) properly credit the meaningful contributions of co-authors and co-researchers, iv) not be submitted to more than one journal for consideration, and v) be appropriately placed in the context of prior and existing research. Of equal importance are ethical guidelines dealing with research methods and research funding, including issues dealing with informed consent, research subject privacy rights, conflicts of interest, and sources of funding. While it may not be possible to draft a 'code' that applies adequately to all instances and circumstances, we believe it useful to outline our expectations of authors and procedures that the Journal will employ in the event of questions concerning author conduct. With respect to conflicts of interest, the Publisher now requires authors to declare any conflicts of interest that relate to papers accepted for publication in this Journal. A conflict of interest may exist when an author or the author's institution has a financial or other relationship with other people or organizations that may inappropriately influence the author's work. A conflict can be actual or potential and full disclosure to the Journal is the safest course. All submissions to the Journal must include disclosure of all relationships that could be viewed as presenting a potential conflict of interest. The Journal may use such information as a basis for editorial decisions and may publish such disclosures if they are believed to be important to readers in judging the manuscript. A decision may be made by the Journal not to publish on the basis of the declared conflict.

Best Cited over the last year.

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Networks of WRKY transcription factors in defense signaling

Members of the complex family of WRKY transcription factors have been implicated in the regulation of transcriptional reprogramming associated with plant immune responses. Recently genetic evidence directly proving their significance as positive and negative regulators of disease resistance has accumulated. WRKY genes were shown to be functionally connected forming a transcriptional network composed of positive and negative feedback loops and feed-forward modules. Within a web of partially…

Volume 10, Issue 4, 01 August 2007, Pp 366-371
Eulgem, T. | Somssich, I.E.

Auxin response factors

Auxin signaling is key to many plant growth and developmental processes from embryogenesis to senescence. Most, if not all, of these processes are initiated and/or mediated through auxin-regulated gene expression. Two types of transcription factor families are required for controlling expression of auxin response genes. One of these, the auxin response factor (ARF) family, functions by binding to auxin response elements (AuxREs) on promoters of auxin response genes, activating or repressing the…

Volume 10, Issue 5, 01 October 2007, Pp 453-460
Guilfoyle, T.J. | Hagen, G.

Pathological hormone imbalances

Plant hormones play important roles in regulating developmental processes and signalling networks involved in plant responses to a wide range of biotic and abiotic stresses. Salicylic acid (SA), jasmonates (JA) and ethylene (ET) are well known to play crucial roles in plant disease and pest resistance. However, the roles of other hormones such as abscisic acid (ABA), auxin, gibberellin (GA), cytokinin (CK) and brassinosteroid (BL) in plant defence are less well known. Much progress has been…

Volume 10, Issue 4, 01 August 2007, Pp 372-379
Robert-Seilaniantz, A. | Navarro, L. | Bari, R. | Jones, J.D.

Salicylic acid in plant defence-the players and protagonists

Salicylic acid (SA) is synthesised by plants in response to challenge by a diverse range of phytopathogens and is essential to the establishment of both local and systemic-acquired resistance (SAR). SA application induces accumulation of pathogenesis-related (PR) proteins. Mutations leading to either reduced SA production or impaired SA perception enhance susceptibility to avirulent and virulent pathogens. However, our knowledge of the primary signalling components activating SA biosynthesis…

Volume 10, Issue 5, 01 October 2007, Pp 466-472
Loake, G. | Grant, M.

Regulatory metabolic networks in drought stress responses

Plants must adapt to drought stress to survive. The phytohormone abscisic acid (ABA) is produced under drought stress conditions and is essential for the response to drought stress. The ABA level plays an important role in the response, and several enzymes for ABA biosynthesis and catabolism have been identified. Physiological studies have shown that several metabolites accumulate and function as osmolytes under drought stress conditions. Many drought-inducible genes with various functions have…

Volume 10, Issue 3, 01 June 2007, Pp 296-302
Seki, M. | Umezawa, T. | Urano, K. | Shinozaki, K.

Pectin structure and biosynthesis

Pectin is structurally and functionally the most complex polysaccharide in plant cell walls. Pectin has functions in plant growth, morphology, development, and plant defense and also serves as a gelling and stabilizing polymer in diverse food and specialty products and has positive effects on human health and multiple biomedical uses. Pectin is a family of galacturonic acid-rich polysaccharides including homogalacturonan, rhamnogalacturonan I, and the substituted galacturonans…

Volume 11, Issue 3, 01 June 2008, Pp 266-277
Mohnen, D.

Lignin engineering

Lignins are aromatic polymers that are present mainly in secondarily thickened plant cell walls. Several decades of research have elucidated the main biosynthetic routes toward the monolignols and demonstrated that lignin amounts can be engineered and that plants can cope with large shifts in p-hydroxyphenyl/guaiacyl/syringyl (H/G/S) lignin compositional ratios. It has also become clear that lignins incorporate many more units than the three monolignols described in biochemistry textbooks.…

Volume 11, Issue 3, 01 June 2008, Pp 278-285
Vanholme, R. | Morreel, K. | Ralph, J. | Boerjan, W.

Unraveling mycorrhiza-induced resistance

Arbuscular mycorrhizal symbioses have a significant impact on plant interactions with other organisms. Increased resistance to soil-borne pathogens has been widely described in mycorrhizal plants. By contrast, effects on shoot diseases largely rely on the lifestyle and challenge strategy of the attacker. Among the potential mechanisms involved in the resistance of mycorrhizal systems, the induction of plant defenses is the most controversial. During mycorrhiza formation, modulation of plant…

Volume 10, Issue 4, 01 August 2007, Pp 393-398
Pozo, M.J. | Azcón-Aguilar, C.

Complexity of the heat stress response in plants

Plants have evolved a variety of responses to elevated temperatures that minimize damage and ensure protection of cellular homeostasis. New information about the structure and function of heat stress proteins and molecular chaperones has become available. At the same time, transcriptome analysis of Arabidopsis has revealed the involvement of factors other than classical heat stress responsive genes in thermotolerance. Recent reports suggest that both plant hormones and reactive oxygen species…

Volume 10, Issue 3, 01 June 2007, Pp 310-316
Kotak, S. | Larkindale, J. | Lee, U. | von Koskull-Döring, P. | Vierling, E. | Scharf, K.-D.

Phytopathogen type III effector weaponry and their plant targets

Phytopathogenic bacteria suppress plant innate immunity and promote pathogenesis by injecting proteins called type III effectors into plant cells using a type III protein secretion system. These type III effectors use at least three strategies to alter host responses. One strategy is to alter host protein turnover, either by direct cleavage or by modulating ubiquitination and targeting the 26S proteasome. Another strategy involves alteration of RNA metabolism by transcriptional activation or…

Volume 11, Issue 4, 01 August 2008, Pp 396-403
Block, A. | Li, G. | Fu, Z.Q. | Alfano, J.R.

Epigenetic regulation of stress responses in plants

Gene expression driven by developmental and stress cues often depends on nucleosome histone post-translational modifications and sometimes on DNA methylation. A number of studies have shown that these DNA and histone modifications play a key role in gene expression and plant development under stress. Most of these stress-induced modifications are reset to the basal level once the stress is relieved, while some of the modifications may be stable, that is, may be carried forward as 'stress…

Volume 12, Issue 2, 01 April 2009, Pp 133-139
Chinnusamy, V. | Zhu, J.-K.

Jasmonate signaling: a conserved mechanism of hormone sensing

The lipid-derived hormone jasmonate (JA) regulates diverse aspects of plant immunity and development. Among the central components of the JA signaling cascade are the E3 ubiquitin ligase SCFCOI1 and Jasmonate ZIM-domain (JAZ) proteins that repress transcription of JA-responsive genes. Recent studies provide evidence that amino acid-conjugated forms of JA initiate signal transduction upon formation of a coronatine-insensitive1 (COI1)-JA-JAZ ternary complex in which JAZs are ubiquitinated and…

Volume 11, Issue 4, 01 August 2008, Pp 428-435
Katsir, L. | Chung, H.S. | Koo, A.J. | Howe, G.A.

Targets of RNA-directed DNA methylation

RNA-directed DNA methylation contributes substantially to epigenetic regulation of the plant genome. Methylation is guided to homologous DNA target sequences by 24 nt 'heterochromatic' small RNAs produced by nucleolar-localized components of the RNAi machinery and a plant-specific RNA polymerase, Pol IV. Plants contain unusually large and diverse populations of small RNAs, many of which originate from transposons and repeats. These sequences are frequent targets of methylation, and they are…

Volume 10, Issue 5, 01 October 2007, Pp 512-519
Matzke, M. | Kanno, T. | Huettel, B. | Daxinger, L. | Matzke, A.J.M.

Regulation of cell wall biosynthesis

Plant cell walls differ in their amount and composition among various cell types and even in different microdomains of the wall of a given cell. Plants must have evolved regulatory mechanisms controlling biosynthesis, targeted secretion, and assembly of wall components to achieve the heterogeneity in cell walls. A number of factors, including hormones, the cytoskeleton, glycosylphosphatidylinositol-anchored proteins, phosphoinositides, and sugar nucleotide supply, have been implicated in the…

Volume 10, Issue 6, 01 December 2007, Pp 564-572
Zhong, R. | Ye, Z.-H.

Iron utilization and metabolism in plants

The solubilization and long-distance allocation of iron between organs and tissues, as well as its subcellular compartmentalization and remobilization, involve various chelation and oxidation/reduction steps, transport activities and association with soluble proteins that store and buffer this metal. Maintaining iron homeostasis is an important determinant in building prosthetic groups such as heme and Fe-S clusters, and in assembling them into apoproteins, which are major components of plant…

Volume 10, Issue 3, 01 June 2007, Pp 276-282
Briat, J.-F. | Curie, C. | Gaymard, F.

Groovy times: filamentous pathogen effectors revealed

Filamentous microorganisms, such as fungi and oomycetes, secrete an arsenal of effector proteins that modulate plant innate immunity and enable parasitic infection. Deciphering the biochemical activities of effectors to understand how pathogens successfully colonize and reproduce on their host plants became a driving paradigm in the field of fungal and oomycete pathology. Recent findings illustrate a diversity of effector structures and activities, as well as validate the view that effector…

Volume 10, Issue 4, 01 August 2007, Pp 358-365
Kamoun, S.

Systemic acquired resistance: the elusive signal(s)

Systemic acquired resistance (SAR) is a form of inducible resistance that is triggered in systemic healthy tissues of locally infected plants. The nature of the mobile signal that travels through the phloem from the site of infection to establish systemic immunity has been sought after for decades. Several candidate signaling molecules have emerged in the past two years, including the methylated derivative of a well-known defense hormone (methyl salicylate), the defense hormone jasmonic acid, a…

Volume 11, Issue 4, 01 August 2008, Pp 436-442
Vlot, A.C. | Klessig, D.F. | Park, S.-W.

Fruit ripening mutants yield insights into ripening control

Fruit ripening is a developmental process that is exclusive to plants whereby mature seed-bearing organs undergo physiological and metabolic changes that promote seed dispersal. Molecular investigations into ripening control mechanisms have been aided by the recent cloning of tomato ripening genes that were previously known only through mutation. Advances in the genomics of tomato have provided genetic and molecular tools that have facilitated the positional and candidate-gene-based cloning of…

Volume 10, Issue 3, 01 June 2007, Pp 283-289
Giovannoni, J.J.

Interplay between cold-responsive gene regulation, metabolism and RNA processing during plant cold acclimation

Temperate plants are capable of developing freezing tolerance when they are exposed to low nonfreezing temperatures. Acquired freezing tolerance involves extensive reprogramming of gene expression and metabolism. Recent full-genome transcript profiling studies, in combination with mutational and transgenic plant analyses, have provided a snapshot of the complex transcriptional network that operates under cold stress. Ubiquitination-mediated proteosomal protein degradation has a crucial role in…

Volume 10, Issue 3, 01 June 2007, Pp 290-295
Zhu, J. | Dong, C.-H. | Zhu, J.-K.

Next is now: new technologies for sequencing of genomes, transcriptomes, and beyond

The sudden availability of DNA sequencing technologies that rapidly produce vast amounts of sequence information has triggered a paradigm shift in genomics, enabling massively parallel surveying of complex nucleic acid populations. The diversity of applications to which these technologies have already been applied demonstrates the immense range of cellular processes and properties that can now be studied at the single-base resolution. These include genome resequencing and polymorphism…

Volume 12, Issue 2, 01 April 2009, Pp 107-118
Lister, R. | Gregory, B.D. | Ecker, J.R.

Plant immune responses triggered by beneficial microbes

Beneficial soil-borne microorganisms, such as plant growth promoting rhizobacteria and mycorrhizal fungi, can improve plant performance by inducing systemic defense responses that confer broad-spectrum resistance to plant pathogens and even insect herbivores. Different beneficial microbe-associated molecular patterns (MAMPs) are recognized by the plant, which results in a mild, but effective activation of the plant immune responses in systemic tissues. Evidence is accumulating that systemic…

Volume 11, Issue 4, 01 August 2008, Pp 443-448
Van Wees, S.C. | Van der Ent, S. | Pieterse, C.M.

Genetic architecture of complex traits in plants

Genetic architecture refers to the numbers and genome locations of genes that affect a trait, the magnitude of their effects, and the relative contributions of additive, dominant, and epistatic gene effects. Quantitative trait locus (QTL) mapping techniques are commonly used to investigate genetic architectures, but the scope of inferences drawn from QTL studies are often restricted by the limitations of the experimental designs. Recent advances in experimental and statistical procedures,…

Volume 10, Issue 2, 01 April 2007, Pp 156-161
Holland, J.B.

News from the frontline: recent insights into PAMP-triggered immunity in plants

Plants have developed a complex defence network to fight off invading pathogens. In recent years, the full importance of pathogen-associated molecular pattern (PAMP)-triggered immunity (PTI) within this network became apparent. Several new PAMPs have been isolated and new pattern-recognition receptors (PRRs) identified. The discovery of the PRR-interacting protein BAK1 sheds light on the immediate downstream signalling events. Further, transcriptomic analyses identified a core set of ∼100…

Volume 11, Issue 4, 01 August 2008, Pp 389-395
Schwessinger, B. | Zipfel, C.

Ethylene signaling: new levels of complexity and regulation

The gaseous plant hormone ethylene plays important roles in plant growth and development. Recent discoveries have expanded our linear view of ethylene signaling by revealing an elaborate signaling network with multiple regulatory circuits. At the membrane, the ethylene receptors form heteromeric and higher order complexes providing enhanced sensitivity and fine-tuning of signaling. Ethylene sensitivity is further enhanced by the rapid degradation of ethylene receptors upon ethylene binding and…

Volume 11, Issue 5, 01 October 2008, Pp 479-485
Kendrick, M.D. | Chang, C.

Epigenetic regulation of flowering

The acceleration of flowering by prolonged low temperature treatment (vernalization) has unique properties including the floral transition occurring at a time separate from the vernalization treatment. This implies the vernalization condition is inherited through mitotic divisions, but this vernalized state is not inherited from one generation to the next. FLC, the key gene mediating this response in the Arabidopsis is repressed by histone modifications involving the VRN2 protein complex. Other…

Volume 10, Issue 5, 01 October 2007, Pp 520-527
Dennis, E.S. | Peacock, W.J.