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https://www.readbyqxmd.com/read/28299408/differential-gene-expression-of-longan-under-simulated-acid-rain-stress
#1
Shan Zheng, Tengfei Pan, Cuilan Ma, Dongliang Qiu
Differential gene expression profile was studied in Dimocarpus longan Lour. in response to treatments of simulated acid rain with pH 2.5, 3.5, and a control (pH 5.6) using differential display reverse transcription polymerase chain reaction (DDRT-PCR). Results showed that mRNA differential display conditions were optimized to find an expressed sequence tag (EST) related with acid rain stress. The potential encoding products had 80% similarity with a transcription initiation factor IIF of Gossypium raimondii and 81% similarity with a protein product of Theobroma cacao...
March 16, 2017: Bulletin of Environmental Contamination and Toxicology
https://www.readbyqxmd.com/read/28288552/microencapsulation-of-theobroma-cacao-l-waste-extract-optimization-using-response-surface-methodology
#2
Taís Vanessa Gabbay Alves, Russany Silva da Costa, Bahar Aliakbarian, Alessandro Alberto Casazza, Patrizia Perego, José Otávio Carréra Silva Júnior, Roseane Maria Ribeiro Costa, Attilio Converti
The cocoa extract (Theobroma cacao L.) has a significant amount of polyphenols (TP) with potent antioxidant activity (AA). This study aims to optimise microencapsulation of the extract of cocoa waste using chitosan and maltodextrin. Microencapsulation tests were performed according to a Box-Behnken factorial design, and the results were evaluated by response surface methodology with temperature, maltodextrin concentration (MD) and extract flowrate (EF) as independent variables, and the fraction of encapsulated TP, TP encapsulation yield, AA, yield of drying and solubility index as responses...
March 13, 2017: Journal of Microencapsulation
https://www.readbyqxmd.com/read/28264305/two-new-eriophyoid-mite-species-trombidiformes-eriophyoidea-from-the-cocoa-tree-and-a-note-on-i-shevtchenkella-i-i-biseta-i-nalepa
#3
Daniela F S Rodrigues, Denise Navia, Anibal R Oliveira, Francisco Ferragut, Carlos H W Flechtmann
Two new eriophyoid mite species are described from the cocoa tree, Theobroma cacao L. (Malvaceae) - the Diptilomiopidae Davisella trevisani n. sp. Rodrigues, Navia & Oliveira, from Brazil; and the Eriophyidae Tetra theobromae n. sp. Rodrigues, Navia & Oliveira, from Costa Rica. The new Davisella species presents an enlarged subcylindrical tubercle bearing pedipalp genual seta d, a novel structure for eriophyoid mites; its functional morphology was discussed. The new Tetra species is the third in this genus described from plants of the Malvaceae...
February 26, 2017: Zootaxa
https://www.readbyqxmd.com/read/28261234/phytophthora-megakarya-and-p-palmivora-causal-agents-of-black-pod-rot-induce-similar-plant-defense-responses-late-during-infection-of-susceptible-cacao-pods
#4
Shahin S Ali, Jonathan Shao, David J Lary, Mary D Strem, Lyndel W Meinhardt, Bryan A Bailey
Phytophthora megakarya (Pmeg) and Phytophthora palmivora (Ppal) cause black pod rot of Theobroma cacao L. (cacao). Of these two clade 4 species, Pmeg is more virulent and is displacing Ppal in many cacao production areas in Africa. Symptoms and species specific sporangia production were compared when the two species were co-inoculated onto pod pieces in staggered 24 h time intervals. Pmeg sporangia were predominantly recovered from pod pieces with unwounded surfaces even when inoculated 24 h after Ppal. On wounded surfaces, sporangia of Ppal were predominantly recovered if the two species were simultaneously applied or Ppal was applied first but not if Pmeg was applied first...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28260703/streptomyces-cameroonensis-sp-nov-a-geldanamycin-producer-that-promotes-theobroma-cacao-growth
#5
Thaddée Boudjeko, Romaric Armel Mouafo Tchinda, Mina Zitouni, Joëlle Aimée Vera Tchatchou Nana, Sylvain Lerat, Carole Beaulieu
The taxonomy of an actinobacterial strain, designated JJY4(T), was established using a polyphasic approach. JJY4(T) was isolated from the rhizosphere of Chromolaena odorata in Yaoundé (Cameroon) during a project for the selection of biological control agents. Strain JJY4(T) exhibited antimicrobial activities against bacteria, fungi, and oomycetes. Strain JJY4(T) also exhibited the traits of plant growth-promoting rhizobacteria such as the solubilization of inorganic phosphate, production of siderophores and indole-3-acetic acid, and 1-aminocyclopropane-1-carboxylate deaminase activity...
March 4, 2017: Microbes and Environments
https://www.readbyqxmd.com/read/28251656/influences-of-superheated-steam-roasting-on-changes-in-sugar-amino-acid-and-flavor-active-components-of-cocoa-bean-theobroma-cacao
#6
Wahidu Zzaman, Rajeev Bhat, Tajul Aris Yang, Azhar Mat Easa
BACKGROUND: Roasting is one of the important unit operations in the cocoa base industries that develop unique flavor in products. Cocoa beans were subjected to roast at different temperature and time using superheated steam. Influence of roasting temperature (150-250 °C) and time (10-50 min) on sugars, free amino acids and volatile flavoring compounds were investigated. RESULTS: The concentration of total reducing sugars was reduced up to 64.61, 77.22 and 82...
March 2, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/28208630/cocoa-and-grape-seed-byproducts-as-a-source-of-antioxidant-and-anti-inflammatory-proanthocyanidins
#7
María De La Luz Cádiz-Gurrea, Isabel Borrás-Linares, Jesús Lozano-Sánchez, Jorge Joven, Salvador Fernández-Arroyo, Antonio Segura-Carretero
Phenolic compounds, which are secondary plant metabolites, are considered an integral part of the human diet. Physiological properties of dietary polyphenols have come to the attention in recent years. Especially, proanthocyanidins (ranging from dimers to decamers) have demonstrated potential interactions with biological systems, such as antiviral, antibacterial, molluscicidal, enzyme-inhibiting, antioxidant, and radical-scavenging properties. Agroindustry produces a considerable amount of phenolic-rich sources, and the ability of polyphenolic structures to interacts with other molecules in living organisms confers their beneficial properties...
February 10, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28187131/genome-size-cytogenetic-data-and-transferability-of-est-ssrs-markers-in-wild-and-cultivated-species-of-the-genus-theobroma-l-byttnerioideae-malvaceae
#8
Rangeline Azevedo da Silva, Gustavo Souza, Lívia Santos Lima Lemos, Uilson Vanderlei Lopes, Nara Geórgia Ribeiro Braz Patrocínio, Rafael Moysés Alves, Lucília Helena Marcellino, Didier Clement, Fabienne Micheli, Karina Peres Gramacho
The genus Theobroma comprises several trees species native to the Amazon. Theobroma cacao L. plays a key economic role mainly in the chocolate industry. Both cultivated and wild forms are described within the genus. Variations in genome size and chromosome number have been used for prediction purposes including the frequency of interspecific hybridization or inference about evolutionary relationships. In this study, the nuclear DNA content, karyotype and genetic diversity using functional microsatellites (EST-SSR) of seven Theobroma species were characterized...
2017: PloS One
https://www.readbyqxmd.com/read/28087663/evolution-and-structural-diversification-of-nictaba-like-lectin-genes-in-food-crops-with-a-focus-on-soybean-glycine-max
#9
Sofie Van Holle, Pierre Rougé, Els J M Van Damme
BACKGROUND AND AIMS: The Nictaba family groups all proteins that show homology to Nictaba, the tobacco lectin. So far, Nictaba and an Arabidopsis thaliana homologue have been shown to be implicated in the plant stress response. The availability of more than 50 sequenced plant genomes provided the opportunity for a genome-wide identification of Nictaba-like genes in 15 species, representing members of the Fabaceae, Poaceae, Solanaceae, Musaceae, Arecaceae, Malvaceae and Rubiaceae. Additionally, phylogenetic relationships between the different species were explored...
January 12, 2017: Annals of Botany
https://www.readbyqxmd.com/read/28039812/fast-non-aqueous-reversed-phase-liquid-chromatography-separation-of-triacylglycerol-regioisomers-with-isocratic-mobile-phase-application-to-different-oils-and-fats
#10
Arnaud W G Tamba Sompila, Sylvie Héron, Dorra Hmida, Alain Tchapla
The distribution of fatty acid species at the sn-1/3 position or the sn-2 position of triacylglycerols (TAGs) in natural fats and oils affects their physical and nutritional properties. In fats and oils, determining the presence of one or two regioisomers and the identification of structure, where they do have one, as well as their separation, became a problem of fundamental importance to solve. A variety of instrumental technics has been proposed, such as MS, chromatography-MS or pure chromatography. A number of studies deal with the optimization of the separation, but very often, they are expensive in time...
January 15, 2017: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
https://www.readbyqxmd.com/read/28028594/major-phytopathogens-and-strains-from-cocoa-theobroma-cacao-l-are-differentiated-by-maldi-ms-lipid-and-or-peptide-protein-profiles
#11
Fábio Neves Dos Santos, Alessandra Tata, Kátia Roberta Anacleto Belaz, Dilze Maria Argôlo Magalhães, Edna Dora Martins Newman Luz, Marcos Nogueira Eberlin
Phytopathogens are the main disease agents that promote attack of cocoa plantations in all tropical countries. The similarity of the symptoms caused by different phytopathogens makes the reliable identification of the diverse species a challenge. Correct identification is important in the monitoring and management of these pests. Here we show that matrix-assisted laser desorption ionization mass spectrometry (MALDI-MS) in combination with multivariate data analysis is able to rapidly and reliably differentiate cocoa phytopathogens, namely Moniliophthora perniciosa, Phytophthora palmivora, P...
March 2017: Analytical and Bioanalytical Chemistry
https://www.readbyqxmd.com/read/28011721/genome-analysis-of-hibiscus-syriacus-provides-insights-of-polyploidization-and-indeterminate-flowering-in-woody-plants
#12
Yong-Min Kim, Seungill Kim, Namjin Koo, Ah-Young Shin, Seon-In Yeom, Eunyoung Seo, Seong-Jin Park, Won-Hee Kang, Myung-Shin Kim, Jieun Park, Insu Jang, Pan-Gyu Kim, Iksu Byeon, Min-Seo Kim, JinHyuk Choi, Gunhwan Ko, JiHye Hwang, Tae-Jin Yang, Sang-Bong Choi, Je Min Lee, Ki-Byung Lim, Jungho Lee, Ik-Young Choi, Beom-Seok Park, Suk-Yoon Kwon, Doil Choi, Ryan W Kim
Hibiscus syriacus (L.) (rose of Sharon) is one of the most widespread garden shrubs in the world. We report a draft of the H. syriacus genome comprised of a 1.75 Gb assembly that covers 92% of the genome with only 1.7% (33 Mb) gap sequences. Predicted gene modeling detected 87,603 genes, mostly supported by deep RNA sequencing data. To define gene family distribution among relatives of H. syriacus, orthologous gene sets containing 164,660 genes in 21,472 clusters were identified by OrthoMCL analysis of five plant species, including H...
December 22, 2016: DNA Research: An International Journal for Rapid Publication of Reports on Genes and Genomes
https://www.readbyqxmd.com/read/27914320/biochemical-precursor-effects-on-the-fatty-acid-production-in-cell-suspension-cultures-of-theobroma-cacao-l
#13
O Parra, A M Gallego, A Urrea, L F Rojas, C Correa, L Atehortúa
Cocoa butter (CB) is composed of 96% palmitic, stearic, oleic, linoleic and linolenic fatty acids that are responsible for the hardness, texture and fusion properties of chocolate. Through in vitro plant cell culture it is possible to modify CB lipid profiles and to study the fatty acid biosynthesis pathway on a subcellular level, evaluating fundamental aspects to enhance in vitro fatty acid production in a specific and controlled way. In this research, culture media was supplemented with acetate, biotin, pyruvate, bicarbonate and glycerol at three different concentrations and the effects on the biomass production (g/L), cell viability, and fatty acids profile and production was evaluated in in vitro cell suspensions culture...
November 25, 2016: Plant Physiology and Biochemistry: PPB
https://www.readbyqxmd.com/read/27871234/a-genome-wide-bac-end-sequence-survey-provides-first-insights-into-sweetpotato-ipomoea-batatas-l-lam-genome-composition
#14
Zengzhi Si, Bing Du, Jinxi Huo, Shaozhen He, Qingchang Liu, Hong Zhai
BACKGROUND: Sweetpotato, Ipomoea batatas (L.) Lam., is an important food crop widely grown in the world. However, little is known about the genome of this species because it is a highly heterozygous hexaploid. Gaining a more in-depth knowledge of sweetpotato genome is therefore necessary and imperative. In this study, the first bacterial artificial chromosome (BAC) library of sweetpotato was constructed. Clones from the BAC library were end-sequenced and analyzed to provide genome-wide information about this species...
November 21, 2016: BMC Genomics
https://www.readbyqxmd.com/read/27833051/theobromine-up-regulates-cerebral-brain-derived-neurotrophic-factor-and-facilitates-motor-learning-in-mice
#15
Mitsugu Yoneda, Naotoshi Sugimoto, Masanori Katakura, Kentaro Matsuzaki, Hayate Tanigami, Akihiro Yachie, Takako Ohno-Shosaku, Osamu Shido
Theobromine, which is a caffeine derivative, is the primary methylxanthine produced by Theobroma cacao. Theobromine works as a phosphodiesterase (PDE) inhibitor to increase intracellular cyclic adenosine monophosphate (cAMP). cAMP activates the cAMP-response element-binding protein (CREB), which is involved in a large variety of brain processes, including the induction of the brain-derived neurotrophic factor (BDNF). BDNF supports cell survival and neuronal functions, including learning and memory. Thus, cAMP/CREB/BDNF pathways play an important role in learning and memory...
January 2017: Journal of Nutritional Biochemistry
https://www.readbyqxmd.com/read/27790069/endophytic-association-of-trichoderma-asperellum-within-theobroma-cacao-suppresses-vascular-streak-dieback-incidence-and-promotes-side-graft-growth
#16
Ade Rosmana, Nasaruddin Nasaruddin, Hendarto Hendarto, Andi Akbar Hakkar, Nursalim Agriansyah
Trichoderma species are able to persist on living sapwood and leaves of cacao (Theobroma cacao) in an endophytic relationship. In this research, we evaluated the ability of Trichodema asperellum introduced at the incision site in the bark for side grafting with the concentration of 4 g/10 mL, 4 g/100 mL, and 4 g/1,000 mL (suspended in water) in suppressing vascular streak dieback (VSD) incidence and promoting growth of side grafts in the field. The incidence of VSD in two local clones of cacao, MCC1 and M04, without application of T...
September 2016: Mycobiology
https://www.readbyqxmd.com/read/27769412/prediction-of-fermentation-index-of-cocoa-beans-theobroma-cacao-l-based-on-color-measurement-and-artificial-neural-networks
#17
Noemí León-Roque, Mohamed Abderrahim, Luis Nuñez-Alejos, Silvia M Arribas, Luis Condezo-Hoyos
Several procedures are currently used to assess fermentation index (FI) of cocoa beans (Theobroma cacao L.) for quality control. However, all of them present several drawbacks. The aim of the present work was to develop and validate a simple image based quantitative procedure, using color measurement and artificial neural network (ANNs). ANN models based on color measurements were tested to predict fermentation index (FI) of fermented cocoa beans. The RGB values were measured from surface and center region of fermented beans in images obtained by camera and desktop scanner...
December 1, 2016: Talanta
https://www.readbyqxmd.com/read/27625772/evaluation-of-different-fermentation-processes-for-use-by-small-cocoa-growers-in-mexico
#18
C Hernández-Hernández, Procopio Alejandro López-Andrade, Miguel A Ramírez-Guillermo, Diana Guerra Ramírez, Juan F Caballero Pérez
The aim of this research was to evaluate four different cacao (Theobroma cacao L.) fermentation conditions and their effect on fermented bean quality, in order to be able to recommend the most suitable condition to producers in the municipality of Huimanguillo, Tabasco, Mexico. Fermentations were carried out in square wooden boxes with capacity for 1000, 300, and 100 kg of fresh beans, as well as a rotary drum with capacity for 500 kg thereof. The fermentation process was carried out for 7 days, and the response variables measured were mass temperature, total soluble solids (TSS), pH, and acidity...
September 2016: Food Science & Nutrition
https://www.readbyqxmd.com/read/27617028/shade-tree-diversity-and-aboveground-carbon-stocks-in-theobroma-cacao-agroforestry-systems-implications-for-redd-%C3%A2-implementation-in-a-west-african-cacao-landscape
#19
Evans Dawoe, Winston Asante, Emmanuel Acheampong, Paul Bosu
BACKGROUND: The promotion of cacao agroforestry is one of the ways of diversifying farmer income and creating incentives through their inclusion in REDD+ interventions. We estimated the aboveground carbon stocks in cacao and shade trees, determined the floristic diversity of shade trees and explored the possibility of implementing REDD+ interventions in cacao landscapes. Using replicated multi-site transect approach, data were collected from nine 1-ha plots established on 5 km long transects in ten cacao growing districts in Ghana West Africa...
December 2016: Carbon Balance and Management
https://www.readbyqxmd.com/read/27604351/erratum-to-theobroma-cacao-l-pathogenesis-related-gene-tandem-array-members-show-diverse-expression-dynamics-in-response-to-pathogen-colonization
#20
Andrew S Fister, Luis C Mejia, Yufan Zhang, Edward Allen Herre, Siela N Maximova, Mark J Guiltinan
No abstract text is available yet for this article.
2016: BMC Genomics
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