Checklist of British and Irish Hymenoptera - Platygastroidea

This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. The attached file is the published version of the article.NHM Repositor

Discovery of Trichopria keralensis (Hymenoptera, Diaprioidea, Diapriidae) in South Korea and Japan, a review of the keralensis species group of Trichopria and the nomenclature and synonymy of Alareka

Copyright Chang-Jun Kim et al. This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. The attached file is the published version of the article

The genus Philoctetes Abeille de Perrin, 1879 from China, with description of two new species (Hymenoptera, Chrysididae)

Copyright © 2015 Magnolia Press. Licensed under a Creative Commons Attribution License http://creativecommons.org/licenses/by/3.0. This is the published version of the article.NHM Repositor

Bees, wasps, flowers and other biological records from Hartslock Nature Reserve, Berkshire UK: records made 2015-2016

NHM copyrightAbstract: A list of records of bees, wasps, and the flowers they visit and other biological records recorded during 2015-2016 from Hartslock Nature Reserve, Berkshire UK and vicinity. Collections were made in order to provide fresh material for DNA sequencing for a national DNA barcode database of British Bees (Tang et al., 2017). Voucher specimens are preserved in the collection of the Natural HIstory Museum London. Hartslock is a Special Areas of Conservation (SAC) Site of Special Scientific Interest (SSSI) managed by the Berks, Bucks & Oxon Wildlife Trust (BBOWT).Data is ©The Trustees of the Natural History Museum, London, and made available under Creative Commons License 4.0 which means in particular that you must a) give appropriate credit by citing the work and b) provide a link to the license (https://creativecommons.org/licenses/by/4.0/)

Nitric oxide signalling in plants

Recently nitric oxide (NO) has emerged as a key signalling molecule in plants. Here we review the potential sources of endogenous NO, outline the biological processes likely to be mediated by NO, and discuss the downstream signalling processes by which NO exerts its cellular effects. It will be important to develop methods to quantify intracellular NO synthesis and release. Clasification of the biosynthetic origins of NO is also required. NO can be synthesised from nitrite via nitrate reductase (NR) and although biochemical and immunological data indicate the presence of enzyme(s) similar to mammalian nitric oxide synthase (NOS), no NOS genes have been identified. NO can induce various processes in plants, including the expression of defence-related genes and programmed cell death (PCD), stomatal closure, seed germination and root development. Intracellular signalling responses to NO involve generation of cGMP, cADPR and elevation of cytosolic calcium, but in many cases, the precise biochemical and cellular nature of these responses has not been detailed. Research priorities here must be the reliable quantification of downstream signalling molecules in NO-responsive cells, and cloning and manipulation of the enzymes responsible for synthesis and degradation of these molecules. © New Phytologist (2003)