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Paola Fincheira, Andrés Quiroz
Agricultural practices require novel products that allow sustainable development and commercial production according to the needs of farmers and consumers. Therefore, in the last decade, eco-friendly alternatives have been studied, so volatile organic compounds (VOCs) emitted by microorganisms have emerged as a cheaper, effective, efficient, and an eco-friendly alternative. VOCs are lipophilic compounds derived from microbial metabolic pathways with low molecular weight (<300 g mol-1 ), low boiling point, and high vapor pressure that allow them to act as signal molecules over short and long distances...
March 2018: Microbiological Research
Ma Del Carmen Orozco-Mosqueda, Ma Del Carmen Rocha-Granados, Bernard R Glick, Gustavo Santoyo
A plant microbiome includes a microbial community that typically interacts extensively with a plant. The plant microbiome can survive either inside or outside of plant tissues, performing various plant beneficial activities including biocontrol of potential phytopathogens and promotion of plant growth. An important part of the plant microbiome includes plant growth-promoting bacteria (PGPB) that commonly reside in the rhizosphere and phyllosphere, and as endophytic bacteria (inside of plant tissues). As new plant microbiome-manipulating strategies have emerged in recent years, we have critically reviewed relevant literature, chiefly from the last decade...
March 2018: Microbiological Research
Soumik Mitra, Krishnendu Pramanik, Anumita Sarkar, Pallab Kumar Ghosh, Tithi Soren, Tushar Kanti Maiti
Bacteria-mediated plant growth promotion and bioremediation of heavy metal containing soil is a widely accepted eco-friendly method. The present study is aimed to screen out cadmium resistant bacterial strain from metal contaminated rice rhizosphere and evaluate its effects on the growth of rice seedlings under cadmium stress. Among four different isolates (designated as S1, S2, S3 and S5), the S2 isolate was screened on the basis of different PGP traits and multi heavy metal resistance (minimum inhibitory concentration for cadmium, lead and arsenic were 3500, 2500 and 1050 µg/ml respectively)...
March 15, 2018: Ecotoxicology and Environmental Safety
Emerson Pontes-da-Silva, William E Magnusson, Barry Sinervo, Gabriel H Caetano, Donald B Miles, Guarino R Colli, Luisa M Diele-Viegas, Jessica Fenker, Juan C Santos, Fernanda P Werneck
Temperature increases can impact biodiversity and predicting their effects is one of the main challenges facing global climate-change research. Ectotherms are sensitive to temperature change and, although predictions indicate that tropical species are highly vulnerable to global warming, they remain one of the least studied groups with respect to the extent of physiological variation and local extinction risks. We model the extinction risks for a tropical heliothermic teiid lizard (Kentropyx calcarata) integrating previously obtained information on intraspecific phylogeographic structure, eco-physiological traits and contemporary species distributions in the Amazon rainforest and its ecotone to the Cerrado savannah...
April 2018: Journal of Thermal Biology
Jennifer Gubitosa, Vito Rizzi, Angela Lopedota, Paola Fini, Anna Laurenzana, Gabriella Fibbi, Fiorenza Fanelli, Andrea Petrella, Valentino Laquintana, Nunzio Denora, Roberto Comparelli, Pinalysa Cosma
HYPOTHESIS: The interesting properties of Gold Nanoparticles (AuNPs) make them attractive for different application fields such as cosmetology, medicine and clinical nanotechnologies. In this work a fast, easy and eco-friendly method for the AuNPs synthesis is proposed by using the Punica Granatum Juice (PGJ) with potential dermatological and cosmetic applications. The AuNPs antioxidant activity, due to the presence of phenols from the juice, and their use as booster for improving the Sun Protection Factor (SPF) in commercial sunscreen formulations, are thus expounded...
March 9, 2018: Journal of Colloid and Interface Science
M Hazwan Hussin, Noraini Abdul Samad, Nur Hanis Abd Latif, Nurul Adilla Rozuli, Siti Baidurah Yusoff, François Gambier, Nicolas Brosse
Lignocellulosic materials can significantly contribute to the development of eco-friendly wood adhesives. In this work, glyoxal-phenolic resins for plywood were prepared using organosolv lignin, which was isolated from black liquor recovered from organosolv pulping of oil palm fronds (OPF) and considered to be an alternative to phenol. Glyoxal, which is a dialdehyde obtained from several natural resources, was used as substitute for formaldehyde. The structure of organosolv lignin and the resins were characterized by FTIR and NMR, and for thermal stability by TGA and DSC...
March 13, 2018: International Journal of Biological Macromolecules
Xin Li, Guiju Xu, Jiaxi Peng, Shengju Liu, Hongyan Zhang, Jiawei Mao, Huan Niu, Wenping Lv, Xingyun Zhao, Ren'an Wu
In this work, a highly efficient profiling of N-linked glycans was achieved by a facile and eco-friendly synthesized highly porous metal-free carbon material. The metal-free carbon was derived from a well-defined nanorod zinc metal-organic framework via the metal removal under a high-temperature carbonization, which exhibited a highly specific surface area of 1700 m2/g. After a further oxidation, the oxidized metal-free carbon was applied to the selective isolation of N-linked glycans from complex biological samples due to the strong interaction between carbon and glycan as well as the size-exclusion mechanism...
March 16, 2018: ACS Applied Materials & Interfaces
Jenny Q Ouyang, Scott Davies, Davide Dominoni
Alternation between day and night is a predictable environmental fluctuation that organisms use to time their activities. Since the invention of artificial lighting, this predictability has been disrupted and continues to change in a unidirectional fashion with increasing urbanization. As hormones mediate individual responses to changing environments, endocrine systems might be one of the first systems affected, as well as being the first line of defense to ameliorate any negative health impacts. In this Review, we first highlight how light can influence endocrine function in vertebrates...
March 15, 2018: Journal of Experimental Biology
Bárbara da Silva, Ryan K Mathew, Euan S Polson, Jennifer Williams, Heiko Wurdak
Organoid methodology provides a platform for the ex vivo investigation of the cellular and molecular mechanisms underlying brain development and disease. The high-grade brain tumor glioblastoma multiforme (GBM) is considered a cancer of unmet clinical need, in part due to GBM cell infiltration into healthy brain parenchyma, making complete surgical resection improbable. Modeling the process of GBM invasion in real time is challenging as it requires both tumor and neural tissue compartments. Here, we demonstrate that human GBM spheroids possess the ability to spontaneously infiltrate early-stage cerebral organoids (eCOs)...
March 1, 2018: SLAS Discovery
Pei Huang, Yuanqing Li, Xiao-Guang Yu, Wei-Bin Zhu, Shu-Yan Nie, Hao Zhang, Jin-Rui Liu, Ning Hu, Shao-Yun Fu
The mimicry of human skin to detect both oncoming and physical-contacting object is of great importance in the fields of manufacturing, artificial robots and vehicles, etc. Herein, a novel bio-inspired flexible and highly responsive dual-mode strain/magnetism composite sensor which works via both contact and contactless modes, is first fabricated by incorporating Fe3O4/silicone system into a carbon fiber aerogel. The distance-dependence of magnetic field endorses the CFA/Fe3O4/silicone composite possible for spatial sensing due to the introduction of Fe3O4 magnetic nanoparticles...
March 15, 2018: ACS Applied Materials & Interfaces
Maiko K Okajima, Saranyoo Sornkamnerd, Tatsuo Kaneko
Cyanobacteria are regarded as very eco-friendly microreactors for the production of various biomolecules such as polysaccharides by fixing not only carbon but also nitrogen in water. Cyanobacterial polysaccharides having various functional groups such as hydroxyls, carboxyls, sulfates, etc. have the ability to interact with metals or inorganics, to create bionanocomposites. Sacran, a supergiant cyanobacterial anionic polysaccharide extracted from the extracellular matrix of Aphanothece sacrum which is mass-cultivated in freshwater, is mainly used to create functional bionanocomposites...
March 15, 2018: Chemical Record: An Official Publication of the Chemical Society of Japan ... [et Al.]
Cristian V Francavilla, Francesco Sessa, Monica Salerno, Giuseppe D Albano, Ines Villano, Giovanni Messina, Fabio Triolo, Lorenzo Todaro, Maria Ruberto, Gabriella Marsala, Orazio Cascio, Maria P Mollica, Vincenzo Monda, Giuseppe Cibelli, Anna Valenzano, Christian Zammit, Marcellino Monda, Antonietta Messina
Background: After long-term intensive training, considerable morphological and functional heart changes occur in professional athletes. Such changes arise progressively and regress upon interruption of the physical activity. Morphological and functional alterations on heart are known as "Athlete's heart" condition. Objective: This study aims to compare echocardiographic parameters in two different groups of professional athletes. Furthermore, a prospective study is performed analyzing the echocardiographic changes occurring in 12 professional players in 3 years of follow-up...
2018: Frontiers in Physiology
Yan Zi, Jinfeng Ding, Jianmin Song, Gavin Humphreys, Yongxin Peng, Chunyan Li, Xinkai Zhu, Wenshan Guo
Waxy wheat has unique end-use properties; however, its production is limited due mainly to its low grain yield compared with non-waxy wheat. In order to increase its grain yield, it is critical to understand the eco-physiological differences in grain filling between the waxy and non-waxy wheat. In this study, two waxy wheat and two non-waxy wheat cultivars were used to investigate the differences in starch-associated enzymes processes, sucrose and starch dynamics, yield components, and the final grain yield...
March 14, 2018: Scientific Reports
Cecilia Siliansky de Andreazzi, Paulo R Guimarães, Carlos J Melián
Studies have shown the potential for rapid adaptation in coevolving populations and that the structure of species interaction networks can modulate the vulnerability of ecological systems to perturbations. Although the feedback loop between population dynamics and coevolution of traits is crucial for understanding long-term stability in ecological assemblages, modelling eco-evolutionary dynamics in species-rich assemblages is still a challenge. We explore how eco-evolutionary feedbacks influence trait evolution and species abundances in 23 empirical antagonistic networks...
March 14, 2018: Proceedings. Biological Sciences
Thomas Cahon, Robin Caillon, Sylvain Pincebourde
Arthropods at the surface of plants live in particular microclimatic conditions that can differ from atmospheric conditions. The temperature of plant leaves can deviate from air temperature, and leaf temperature influences the eco-physiology of small insects. The activity of insects feeding on leaf tissues, may, however, induce changes in leaf surface temperatures, but this effect was only rarely demonstrated. Using thermography analysis of leaf surfaces under controlled environmental conditions, we quantified the impact of presence of apple green aphids on the temperature distribution of apple leaves during early infestation...
March 14, 2018: Insects
Yugal Kishore Mohanta, Debasis Nayak, Kunal Biswas, Sameer Kumar Singdevsachan, Elsayed Fathi Abd Allah, Abeer Hashem, Abdulaziz A Alqarawi, Dhananjay Yadav, Tapan Kumar Mohanta
The present study demonstrates an economical and eco-friendly method for the synthesis of silver nanoparticles (AgNPs) using the wild mushroom Ganoderma sessiliforme . The synthesis of AgNPs was confirmed and the products characterized by UV-visible spectroscopy, dynamic light scattering spectroscopy and X-ray diffraction analysis. Furthermore, Fourier transform infrared spectroscopy (ATR-FTIR) analysis was performed to identify the viable biomolecules involved in the capping and active stabilization of AgNPs...
March 14, 2018: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
James C Courtenay, Ram I Sharma, Janet L Scott
Tissue engineering is a rapidly advancing field in regenerative medicine, with much research directed towards the production of new biomaterial scaffolds with tailored properties to generate functional tissue for specific applications. Recently, principles of sustainability, eco-efficiency and green chemistry have begun to guide the development of a new generation of materials, such as cellulose, as an alternative to conventional polymers based on conversion of fossil carbon (e.g., oil) and finding technologies to reduce the use of animal and human derived biomolecules (e...
March 14, 2018: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
Xingang Li, Youyi He, Hong Sui, Lin He
A new, simple one-step approach has been developed to synthesize lignin and lignin amine coated Fe₃O₄ nanoparticles. These nanoparticles (lignin magnetic nanoparticles (LMNPs) and lignin amine magnetic nanoparticles (LAMNPs)) are found to possess not only magnetic response but also pH-dependent adsorption behavior. Results show that the combination of lignin with nanoparticles increased the adsorption capacities 2-5 times higher than other traditional single lignin based adsorbents (211.42 mg/g for methylene blue (MB) by LMNPs and 176...
March 14, 2018: Nanomaterials
Kakaraparthi Kranthiraja, Um Kanta Aryal, Vijaya Gopalan Sree, Kumarasamy Gunasekar, Changyeon Lee, Minseok Kim, Bumjoon J Kim, Myungkwan Song, Sung-Ho Jin
The ternary blend approach has the potential to enhance the power conversion efficiencies (PCEs) of polymer solar cells (PSCs) by providing complementary absorption and efficient charge generation. Unfortunately, most PSCs are processed with toxic halogenated solvents, which are harmful to human health and the environment. Herein, we report the addition of a non-fullerene electron acceptor (ITIC) to a binary blend (P1:PC71BM, PCE = 8.07%) to produce an efficient non-halogenated green solvent-processed ternary PSC system with a high PCE of 10...
March 14, 2018: ACS Applied Materials & Interfaces
Koji Takayama, Daniel J Crawford, Patricio López-Sepúlveda, Josef Greimler, Tod F Stuessy
Adaptive radiation is a common evolutionary phenomenon in oceanic islands. From one successful immigrant population, dispersal into different island environments and directional selection can rapidly yield a series of morphologically distinct species, each adapted to its own particular environment. Not all island immigrants, however, follow this evolutionary pathway. Others successfully arrive and establish viable populations, but they remain in the same ecological zone and only slowly diverge over millions of years...
March 13, 2018: Journal of Plant Research
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