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https://www.readbyqxmd.com/read/29321863/impact-of-moderate-and-extreme-climate-change-scenarios-on-growth-morphological-features-photosynthesis-and-fruit-production-of-hot-pepper
#1
Sang Gyu Lee, Sung Kyeom Kim, Hee Ju Lee, Hee Su Lee, Jin Hyoung Lee
Horticultural crop production and changes in physiological aspects during the growing season may be affected by climate change factors (CC), which include increased temperature and the associated doubling or tripling of atmospheric CO2 concentrations. However, the potential effects are complex and many parameters might impact on the observed effects. To evaluate the effects of CC, the growth, yield, fruit characteristics, photosynthetic traits, and morphological characteristics of hot peppers were investigated...
January 2018: Ecology and Evolution
https://www.readbyqxmd.com/read/29304231/buffered-delivery-of-phosphate-to-arabidopsis-alters-responses-to-low-phosphate
#2
Meredith T Hanlon, Swayamjit Ray, Patompong Saengwilai, Dawn Luthe, Jonathan P Lynch, Kathleen M Brown
Arabidopsis has been reported to respond to phosphate (Pi) stress by arresting primary root growth and increasing lateral root branching. We developed a system to buffer Pi availability to Arabidopsis in gel media systems by charging activated aluminum oxide particles with low and sufficient concentrations of Pi, based on previous work in horticultural and sand culture systems. This system more closely mimics soil chemistry and results in different growth and transcriptional responses to Pi stress compared with plants grown in standard gel media...
January 3, 2018: Journal of Experimental Botany
https://www.readbyqxmd.com/read/29304084/risk-assessment-and-spread-of-the-potentially-invasive-ceratitis-rosa-karsch-and-ceratitis-quilicii-de-meyer-mwatawala-virgilio-sp-nov-using-life-cycle-simulation-models-implications-for-phytosanitary-measures-and-management
#3
Chrysantus Mbi Tanga, Fathiya Mbarak Khamis, Henri E Z Tonnang, Ivan Rwomushana, Gladys Mosomtai, Samira A Mohamed, Sunday Ekesi
Integrative taxonomy has resolved the species status of the potentially invasive Ceratitis rosa Karsch into two separate species with distinct ecological requirements: C. rosa "lowland type" and the newly described species Ceratitis quilicii De Meyer, Mwatawala & Virgilio sp. nov. "highland type". Both species are tephritid pests threatening the production of horticultural crops in Africa and beyond. Studies were carried out by constructing thermal reaction norms for each life stage of both species at constant and fluctuating temperatures...
2018: PloS One
https://www.readbyqxmd.com/read/29304005/investigating-the-mis-match-between-natural-pest-control-knowledge-and-the-intensity-of-pesticide-use
#4
David Mall, Ashley E Larsen, Emily A Martin
Transforming modern agriculture towards both higher yields and greater sustainability is critical for preserving biodiversity in an increasingly populous and variable world. However, the intensity of agricultural practices varies strongly between crop systems. Given limited research capacity, it is crucial to focus efforts to increase sustainability in the crop systems that need it most. In this study, we investigate the match (or mismatch) between the intensity of pesticide use and the availability of knowledge on the ecosystem service of natural pest control across various crop systems...
January 5, 2018: Insects
https://www.readbyqxmd.com/read/29276662/-ogura-based-cms-lines-with-different-nuclear-backgrounds-of-cabbage-revealed-substantial-diversity-at-morphological-and-molecular-levels
#5
Chander Parkash, Sandeep Kumar, Rajender Singh, Ajay Kumar, Satish Kumar, Shyam Sundar Dey, Reeta Bhatia, Raj Kumar
A comprehensive study on characterization and genetic diversity analysis was carried out in 16 'Ogura'-based 'CMS' lines of cabbage using 14 agro-morphological traits and 29 SSR markers. Agro-morphological characterization depicted considerable variations for different horticultural traits studied. The genotype, ZHA-2, performed better for most of the economically important quantitative traits. Further, gross head weight (0.76), head length (0.60) and head width (0.83) revealed significant positive correlation with net head weight...
January 2018: 3 Biotech
https://www.readbyqxmd.com/read/29273740/rna-sequencing-provides-insights-into-the-evolution-of-lettuce-and-the-regulation-of-flavonoid-biosynthesis
#6
Lei Zhang, Wenqing Su, Rong Tao, Weiyi Zhang, Jiongjiong Chen, Peiyao Wu, Chenghuan Yan, Yue Jia, Robert M Larkin, Dean Lavelle, Maria-Jose Truco, Sebastian Reyes Chin-Wo, Richard W Michelmore, Hanhui Kuang
Different horticultural types of lettuce exhibit tremendous morphological variation. However, the molecular basis for domestication and divergence among the different horticultural types of lettuce remains unknown. Here, we report the RNA sequencing of 240 lettuce accessions sampled from the major horticultural types and wild relatives, generating 1.1 million single-nucleotide polymorphisms (SNPs). Demographic modeling indicates that there was a single domestication event for lettuce. We identify a list of regions as putative selective sweeps that occurred during domestication and divergence, respectively...
December 22, 2017: Nature Communications
https://www.readbyqxmd.com/read/29273002/mining-and-expression-analysis-of-candidate-genes-involved-in-regulating-the-chilling-requirement-fulfillment-of-paeonia-lactiflora-hang-baishao
#7
Jiaping Zhang, Danqing Li, Xiaohua Shi, Dong Zhang, Shuai Qiu, Jianfen Wei, Jiao Zhang, Jianghua Zhou, Kaiyuan Zhu, Yiping Xia
BACKGROUND: The artificial enlargement of the planting area and ecological amplitude of ornamentals for horticultural and landscape applications are significant. Herbaceous peony (Paeonia lactiflora Pall.) is a world-famous ornamental with attractive and fragrant flowers and is mainly planted in temperate and cool areas. Comparatively higher winter temperatures in the subtropical and tropical Northern Hemisphere result in a deficit of chilling accumulation for bud dormancy release, which severely hinders "The southward plantation of herbaceous peony"...
December 22, 2017: BMC Plant Biology
https://www.readbyqxmd.com/read/29261335/development-of-a-checklist-for-assessing-good-hygiene-practices-of-fresh-cut-fruits-and-vegetables-using-focus-group-interviews
#8
Jane A M Araújo, Erick A Esmerino, Verônica O Alvarenga, Leandro P Cappato, Iracema C Hora, Marcia Cristina Silva, Monica Q Freitas, Tatiana C Pimentel, Eduardo H M Walter, Anderson S Sant'Ana, Adriano G Cruz
This study aimed to develop a checklist for good hygiene practices (GHP) for raw material of vegetable origin using the focus groups (FGs) approach (n = 4). The final checklist for commercialization of horticultural products totaled 28 questions divided into six blocks, namely: water supply; hygiene, health, and training; waste control; control of pests; packaging and traceability; and hygiene of facilities and equipment. The FG methodology was efficient to elaborate a participatory and objective checklist, based on minimum hygiene requirements, serving as a tool for diagnosis, planning, and training in GHP of fresh vegetables, besides contributing to raise awareness of the consumers' food safety...
December 20, 2017: Foodborne Pathogens and Disease
https://www.readbyqxmd.com/read/29260388/vitamin-g-arden-a-qualitative-study-exploring-perception-s-of-horticultural-therapy-on-a-palliative-care-ward
#9
Eva Katharina Masel, Helena Trinczek, Feroniki Adamidis, Sophie Schur, Matthias Unseld, Anna Kitta, Kathrin Kirchheiner, Birgit Steininger, Karoline Meixner-Katzmann, Herbert Hans Watzke
PURPOSE: In a palliative care setting, the preservation of quality of life is of particular importance. Horticultural therapy (HT) is reported as an excellent way to improve physical as well as psychological well-being, reduce levels of anxiety and depression, and promote social interaction. The use of horticultural interventions in palliative care has not yet been explored. The aim of this study was to explore the effects of HT in patients and team members on a palliative care ward. METHODS: This study was based on a qualitative methodology, comprising 20 semistructured interviews with 15 advanced cancer patients participating in HT and with 5 members of the palliative care team...
December 19, 2017: Supportive Care in Cancer: Official Journal of the Multinational Association of Supportive Care in Cancer
https://www.readbyqxmd.com/read/29260268/computation-of-the-inverse-additive-relationship-matrix-for-autopolyploid-and-multiple-ploidy-populations
#10
Matthew G Hamilton, Richard J Kerr
Rules to generate the inverse additive relationship matrix (A -1 ) are defined to enable the adoption restricted maximum likelihood (REML) and best linear unbiased prediction (BLUP) in autopolyploid populations with multiple ploidy levels. Many important agronomic, horticultural, ornamental, forestry, and aquaculture species are autopolyploids. However, the adoption of restricted maximum likelihood (REML), for estimating co/variance components, and best linear unbiased prediction (BLUP), for predicting breeding values, has been hampered in autopolyploid breeding by the absence of an appropriate means of generating the inverse additive relationship matrix (A -1 )...
December 19, 2017: TAG. Theoretical and Applied Genetics. Theoretische und Angewandte Genetik
https://www.readbyqxmd.com/read/29246263/the-complete-chloroplast-genome-sequence-of-asian-palmyra-palm-borassus-flabellifer
#11
Arpakorn Sakulsathaporn, Passorn Wonnapinij, Supachai Vuttipongchaikij, Somsak Apisitwanich
OBJECTIVE: Borassus flabellifer or Asian Palmyra palm is widely distributed in South and Southeast Asia and is horticultural and economic importance for its fruit and palm sugar production. However, its population is in rapid decline, and only a few genetic data are available. We sequenced the complete chloroplast (cp) genome of B. flabellifer to provide its genetic data for further utilization. RESULTS: The cp genome was obtained by Illumina sequencing and manual gap fillings providing 160,021 bp in length containing a pair of inverted repeats (IRs) with 27,256 bp...
December 16, 2017: BMC Research Notes
https://www.readbyqxmd.com/read/29235034/assessment-of-the-health-status-and-risk-of-genotoxic-and-cytotoxic-damage-in-argentinian-adolescents-living-near-horticultural-crops
#12
Fabián Martínez-Perafán, María Fernanda Santoli, Marcela López-Nigro, Marta Ana Carballo
In some rural areas in Argentina, adolescents may be considered as a group indirectly exposed to agrochemicals because their parents plant small crops near their homes. This could become a health risk to children and adolescents who may be more sensitive to exposure to chemicals than adults. The objective of this study was to evaluate the health status of two different groups of Argentinian adolescents using biochemical parameters, dietary information, and cytogenetic biomarkers of genotoxicity and cytotoxicity...
December 13, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/29223880/tomato-plants-use-non-enzymatic-antioxidant-pathways-to-cope-with-moderate-uv-a-b-irradiation-a-contribution-to-the-use-of-uv-a-b-in-horticulture
#13
N Mariz-Ponte, R J Mendes, S Sario, J M P Ferreira de Oliveira, P Melo, C Santos
Plants developed receptors for solar UV-A/B radiation, which regulate a complex network of functions through the plant's life cycle. However, greenhouse grown crops, like tomato, are exposed to strongly reduced UV radiation, contrarily to their open-field counterparts. A new paradigm of modern horticulture is to supplement adequate levels of UV to greenhouse cultures, inducing a positive mild stress necessary to stimulate oxidative stress pathways and antioxidant mechanisms. Protected cultures of Solanum (cv MicroTom) were supplemented with moderate UV-A (1h and 4h) and UV-B (1min and 5min) doses during the flowering/fruiting period...
December 6, 2017: Journal of Plant Physiology
https://www.readbyqxmd.com/read/29214445/auxin-enhances-grafting-success-in-carya-cathayensis-chinese-hickory
#14
R M Saravana Kumar, Liu Xiao Gao, Hu Wei Yuan, Dong Bin Xu, Zhao Liang, Shen Chen Tao, Wen Bin Guo, Dao Liang Yan, Bing Song Zheng, Johan Edqvist
Application of auxin to root stock and scion increases the success rate of grafting in Chinese hickory. The nuts of the Chinese hickory (Carya cathayensis) tree are considered both delicious and healthy. The popularity and high demand result is that the hickory nuts are of very high economical value for horticulture. This is particularly true for the Zhejiang province in eastern China where this tree is widely cultivated. However, there are several difficulties surrounding the hickory cultivation, such as for example long vegetative growth, tall trees, labour-intensive nut picking, and slow variety improvements...
December 6, 2017: Planta
https://www.readbyqxmd.com/read/29209349/regulation-of-fig-ficus-carica-l-fruit-color-metabolomic-and-transcriptomic-analyses-of-the-flavonoid-biosynthetic-pathway
#15
Ziran Wang, Yuanyuan Cui, Alexander Vainstein, Shangwu Chen, Huiqin Ma
Combined metabolomic and transcriptomic analyses were carried out with fig cultivar Green Peel and its color mutant "Purple Peel." Five and twenty-two metabolites were identified as having significantly different contents between fruit peels of the two cultivars at young and mature stages, respectively. Cyanidin O-malonylhexoside demonstrated a 3,992-fold increase in the mature purple peel, the first identification of a major cyanidin in fig fruit; cyanidin 3-O-glucoside, cyanidin O-malonylhexoside O-hexoside and cyanidin-3,5-O-diglucoside were upregulated 100-fold, revealing the anthocyanins underlying the purple mutation...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/29198200/selecting-native-perennial-plants-for-ecological-intensification-in-mediterranean-greenhouse-horticulture
#16
E Rodríguez, M González, D Paredes, M Campos, E Benítez
Natural control by predators and parasitoids provides an important and often unnoticed ecosystem service to agricultural landscapes by reducing pest populations in crops. The current model of horticultural intensification in south-eastern Spain produces high yields but has also resulted in a landscape almost completely covered by plastic. Promoting natural areas among greenhouses could enhance biodiversity, by being beneficial insects, and reduce pest pressure outdoors. The first step is to ascertain how pests and their natural enemies (NEs) use Mediterranean vegetation for selecting the best plants for pest suppression outdoors...
December 4, 2017: Bulletin of Entomological Research
https://www.readbyqxmd.com/read/29190278/can-narrow-bandwidth-light-from-uv-a-to-green-alter-secondary-plant-metabolism-and-increase-brassica-plant-defenses-against-aphids
#17
Ole Rechner, Susanne Neugart, Monika Schreiner, Sasa Wu, Hans-Michael Poehling
Light of different wavelengths is essential for plant growth and development. Short-wavelength radiation such as UV can shift the composition of flavonoids, glucosinolates, and other plant metabolites responsible for enhanced defense against certain herbivorous insects. The intensity of light-induced, metabolite-based resistance is plant- and insect species-specific and depends on herbivore feeding guild and specialization. The increasing use of light-emitting diodes (LEDs) in horticultural plant production systems in protected environments enables the creation of tailor-made light scenarios for improved plant cultivation and induced defense against herbivorous insects...
2017: PloS One
https://www.readbyqxmd.com/read/29181647/the-role-of-plant-hormones-during-grafting
#18
Amrit K Nanda, Charles W Melnyk
For millennia, people have cut and joined different plant tissues together through a process known as grafting. By creating a chimeric organism, desirable properties from two plants combine to enhance disease resistance, abiotic stress tolerance, vigour or facilitate the asexual propagation of plants. In addition, grafting has been extremely informative in science for studying and identifying the long-distance movement of molecules. Despite its increasing use in horticulture and science, how plants undertake the process of grafting remains elusive...
November 27, 2017: Journal of Plant Research
https://www.readbyqxmd.com/read/29180830/mycosphaerellaceae-chaos-or-clarity
#19
S I R Videira, J Z Groenewald, C Nakashima, U Braun, R W Barreto, P J G M de Wit, P W Crous
The Mycosphaerellaceae represent thousands of fungal species that are associated with diseases on a wide range of plant hosts. Understanding and stabilising the taxonomy of genera and species of Mycosphaerellaceae is therefore of the utmost importance given their impact on agriculture, horticulture and forestry. Based on previous molecular studies, several phylogenetic and morphologically distinct genera within the Mycosphaerellaceae have been delimited. In this study a multigene phylogenetic analysis (LSU, ITS and rpb2) was performed based on 415 isolates representing 297 taxa and incorporating ex-type strains where available...
June 2017: Studies in Mycology
https://www.readbyqxmd.com/read/29176988/genome-wide-association-mapping-of-flowering-and-ripening-periods-in-apple
#20
Jorge Urrestarazu, Hélène Muranty, Caroline Denancé, Diane Leforestier, Elisa Ravon, Arnaud Guyader, Rémi Guisnel, Laurence Feugey, Sébastien Aubourg, Jean-Marc Celton, Nicolas Daccord, Luca Dondini, Roberto Gregori, Marc Lateur, Patrick Houben, Matthew Ordidge, Frantisek Paprstein, Jiri Sedlak, Hilde Nybom, Larisa Garkava-Gustavsson, Michela Troggio, Luca Bianco, Riccardo Velasco, Charles Poncet, Anthony Théron, Shigeki Moriya, Marco C A M Bink, François Laurens, Stefano Tartarini, Charles-Eric Durel
Deciphering the genetic control of flowering and ripening periods in apple is essential for breeding cultivars adapted to their growing environments. We implemented a large Genome-Wide Association Study (GWAS) at the European level using an association panel of 1,168 different apple genotypes distributed over six locations and phenotyped for these phenological traits. The panel was genotyped at a high-density of SNPs using the Axiom®Apple 480 K SNP array. We ran GWAS with a multi-locus mixed model (MLMM), which handles the putatively confounding effect of significant SNPs elsewhere on the genome...
2017: Frontiers in Plant Science
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