The Special Issue “Plant Proteomics 3.0” was conceived in an attempt to address the recent advancements in as well as limitations of current proteomic techniques and their diverse applications to attain new insights into plant molecular responses to various biotic and abiotic stressors and the molecular bases of other processes. Proteomics’ focus is also related to translational purposes, including food traceability and allergen detection. In addition, bioinformatic techniques are needed for more confident identification, quantitation, data analysis and networking, especially with non-model or orphan plants, including medicinal and meditational plants as well as forest tree species. This Special Issue contains 23 articles, including four reviews and 19 original papers.

This book is a printed edition of the Special Issue "Plant Proteomic Research" that was published in IJMS

As an important tool of systems biology, proteomics has enabled a deep understanding of different plant processes and functions. Complemented with genomic data, computational tools, and improved sample preparation strategies, proteomics has an unprecedented opportunity to characterize plant proteoforms in high spatial and temporal resolution. This special issue of Plant Proteomic Research 4.0 captures the recent advancements in proteomics and addresses the current challenges of plant stress response and resilience in the ever-changing climate. It contains 12 articles, including three reviews and nine original research articles. The three reviews deal with pollen phosphoproteomics, starch biosynthesis-related proteins and posttranslational modifications (PTMs) in rice developing seeds, and PTMs of waxy proteins in rice grain. The nine research articles include three related to temperature, two on water stress, two on salt stress, one on fungal pathogen, and the last one on field-grown potato apoplast proteome. The articles reflect the current frontiers of plant proteomics, focusing on themes of environmental stresses, proteoforms/PTMs, crop species, and new development in data-independent acquisition mass spectrometry. They provide readers insights into current technologies, their utility in understanding plant growth and resilience, as well as directions of proteomics in the frontiers of systems biology and synthetic biology.

Advancements in high-throughput “Omics” techniques have revolutionized plant molecular biology research. Proteomics offers one of the best options for the functional analysis of translated regions of the genome, generating a wealth of detailed information regarding the intrinsic mechanisms of plant stress responses. Various proteomic approaches are being exploited extensively for elucidating master regulator proteins which play key roles in stress perception and signaling, and these approaches largely involve gel-based and gel-free techniques, including both label-based and label-free protein quantification. Furthermore, post-translational modifications, subcellular localization, and protein-protein interactions provide deeper insight into protein molecular function. Their diverse applications contribute to the revelation of new insights into plant molecular responses to various biotic and abiotic stressors.

The proteome comprises all protein species resulting from geneexpression in a cell, organelle, tissue or organism. By definition,proteomics aims to identify and characterise the expressionpattern, cellular location, activity, regulation,post-translational modifications, molecular interactions, threedimensional structures and functions of each protein in abiological system. In plant science, the number of proteome studies is rapidlyexpanding after the completion of the Arabidopsis thaliana genomesequence, and proteome analyses of other important or emergingmodel systems and crop plants are in progress or are beinginitiated. Proteome analysis in plants is subject to the sameobstacles and limitations as in other organisms, but the nature ofplant tissues, with their rigid cell walls and complex variety ofsecondary metabolites, means that extra challenges are involvedthat may not be faced when analysing other organisms. This volume aims to highlight the ways in which proteome analysishas been used to probe the complexities of plant biochemistry andphysiology. It is aimed at researchers in plant biochemistry,genomics, transcriptomics and metabolomics who wish to gain anup-to-date insight into plant proteomes, the information plantproteomics can yield and the directions plant proteome research istaking.

Plant research has stood at the forefront of the genomics revolution. One of the first genome projects, the sequencing of the commonly used model organism Arabidopsis, has already yielded important results for the study of a broad array of crops such as corn and soybeans. With crop and food bioengineering only in its infancy, the need to understand the fundamental genetic mechanisms of plants will only become more pressing. A comprehensive guide to this fascinating area of genomics, Plant Genomics and Proteomics presents an integrated, broadly accessible treatment of the complex relationship between the genome, transcriptome, and proteome of plants. This clearly written text introduces the reader to the range of molecular techniques applicable to investigating the unique facets of plant growth, development, and response to the environment. Coverage includes: Functional and structural genomics addressed within the context of current techniques and challenges to come How to utilize DNA and protein sequence data Practical considerations for choosing and employing the most commonly available computer applications A review of applications for biotechnology, including genetic modification and defense against pathogens Bioinformatics tools and Web resources Numerous examples from the latest research throughout Assuming no specialized knowledge of plant biology on the part of its reader, Plant Genomics and Proteomics provides an invaluable resource for students and researchers in biotechnology, plant biology, genomics, and bioinformatics.

The field of proteomics has advanced considerably over the past two decades. The ability to delve deeper into an organism’s proteome, identify an array of post-translational modifications and profile differentially abundant proteins has greatly expanded the utilization of proteomics. Improvements to instrumentation in conjunction with the development of these reproducible workflows have driven the adoption and application of this technology by a wider research community. However, the full potential of proteomics is far from being fully exploited in plant biology and its translational application needs to be further developed. In 2011, a group of plant proteomic researchers established the International Plant Proteomics Organization (INPPO) to advance the utilization of this technology in plants as well as to create a way for plant proteomics researchers to interact, collaborate and exchange ideas. The INPPO conducted its inaugural world congress in mid 2014 at the University of Hamburg (Germany). Plant proteomic researchers from around the world were in attendance and the event marked the maturation of this research community. The Research Topic captures the opinions, ideas and research discussed at the congress and encapsulates the approaches that were being applied in plant proteomics.

This volume explores the latest developments in protein secretion research in plants, as compared to yeast and mammalian systems. The chapters in this book present a diverse and thorough perspective of the field and cover topics such as bioinformatic analysis, proteomic studies, ultrastructural analysis, and genetic screening methods. Written in the highly successful Methods in Molecular Biology series format, chapters include introductions to their respective topics, lists of the necessary materials and reagents, step-by-step, readily reproducible laboratory protocols, and tips on troubleshooting and avoiding known pitfalls. Cutting-edge and comprehensive, Plant Protein Secretion: Methods and Protocols, Second Edition is a valuable resource for researchers and students in the field of plant biology, and will inspire further advancements in our understanding of protein secretion in plant cells and beyond.