Digestive processes impact panda survival
Mississippi State University researchers were part of the team that learned that giant and red pandas have different digestive microbes, a finding with important implications for conservation efforts and captive animal rearing.
Gastrointestinal diseases are the major cause of mortality in wild and captive pandas, but little is known about their digestive process. The giant panda is an endangered species, while the red panda is considered a vulnerable species, according to the International Union for Conservation of Nature. Both eat mostly fibrous bamboo.
Candace Williams, an MSU doctoral student in biochemistry, conducted the research in collaboration with the University of Wisconsin-Madison, the Memphis Zoo and the National Zoo in Washington, D.C. Williams presented her findings at the American Society for Microbiology in Boston in May.
Her study was funded through the university’s Mississippi Agricultural and Forestry Experiment Station and the Memphis Zoological Society.
“Although they are different species, the giant panda and red panda share several characteristics,” Williams said.
Under the direction of biochemist Ashli Brown Johnson, MSU scientists set out to determine if there were similarities in the microbes that digest this plant-based diet.
To investigate the microbes, Williams collected fecal samples from two giant pandas and one red panda at the Memphis Zoo. The team also obtained samples from a red panda at the National Zoo. Williams used advanced genetic sequencing techniques to determine what gastrointestinal bacteria were present.
“The procedure revealed all microbes in the fecal matter, including some that were not known,” Johnson said. “Study of these microbes may have unrealized potential for agriculture, biomass digestion for bioenergy crops or other discovery research applications.”
Fecal samples from both species were dominated by plant material, which impeded identification of the microbes. A student at the University of Wisconsin-Madison developed a method to remove this plant material, allowing the digestive microbes to be clearly identified.
“Our results revealed significant differences between the microbes found in the two panda species,” Johnson said. “While they have some similar microbes in their digestive tracts, each panda species has a different dominant microbe present.”
Understanding the gastrointestinal bacteria in pandas will help guide reforestation efforts throughout China’s mountainous region. The Chinese government has established 50 panda reserves within the animals’ home range. Additionally, China has banned logging to preserve the habitat of the declining species.
“With gastrointestinal disease causing the greatest natural mortality of red and giant pandas, a greater understanding of the digestive microbes will assist in maintaining captive panda populations housed at zoos,” Williams said.
Mississippi State scientists have worked with the Chinese Academy of Science’s Institute of Zoology to monitor and identify the wild panda population. Future research will examine the nutritional composition of bamboo to determine whether the pandas are consuming different varieties of the fibrous plant.
Dr. Ashli Brown Johnson | newswise
Stick insects produce bacterial enzymes themselves
31.05.2016 | Max-Planck-Institut für chemische Ökologie
New Model of T Cell Activation
27.05.2016 | Albert-Ludwigs-Universität Freiburg im Breisgau
Physicists of the Laboratory for Attosecond Physics at the Max Planck Institute of Quantum Optics and the Ludwig-Maximilians-Universität Munich in collaboration with scientists from the Friedrich-Alexander-Universität Erlangen-Nürnberg have observed a light-matter phenomenon in nano-optics, which lasts only attoseconds.
The interaction between light and matter is of key importance in nature, the most prominent example being photosynthesis. Light-matter interactions have also...
A biological and energy-efficient process, developed and patented by the University of Innsbruck, converts nitrogen compounds in wastewater treatment facilities into harmless atmospheric nitrogen gas. This innovative technology is now being refined and marketed jointly with the United States’ DC Water and Sewer Authority (DC Water). The largest DEMON®-system in a wastewater treatment plant is currently being built in Washington, DC.
The DEMON®-system was developed and patented by the University of Innsbruck 11 years ago. Today this successful technology has been implemented in about 70...
Permanent magnets are very important for technologies of the future like electromobility and renewable energy, and rare earth elements (REE) are necessary for their manufacture. The Fraunhofer Institute for Mechanics of Materials IWM in Freiburg, Germany, has now succeeded in identifying promising approaches and materials for new permanent magnets through use of an in-house simulation process based on high-throughput screening (HTS). The team was able to improve magnetic properties this way and at the same time replaced REE with elements that are less expensive and readily available. The results were published in the online technical journal “Scientific Reports”.
The starting point for IWM researchers Wolfgang Körner, Georg Krugel, and Christian Elsässer was a neodymium-iron-nitrogen compound based on a type of...
In the Beyond EUV project, the Fraunhofer Institutes for Laser Technology ILT in Aachen and for Applied Optics and Precision Engineering IOF in Jena are developing key technologies for the manufacture of a new generation of microchips using EUV radiation at a wavelength of 6.7 nm. The resulting structures are barely thicker than single atoms, and they make it possible to produce extremely integrated circuits for such items as wearables or mind-controlled prosthetic limbs.
In 1965 Gordon Moore formulated the law that came to be named after him, which states that the complexity of integrated circuits doubles every one to two...
Characterization of high-quality material reveals important details relevant to next generation nanoelectronic devices
Quantum mechanics is the field of physics governing the behavior of things on atomic scales, where things work very differently from our everyday world.
24.05.2016 | Event News
20.05.2016 | Event News
19.05.2016 | Event News
31.05.2016 | Power and Electrical Engineering
31.05.2016 | Life Sciences
31.05.2016 | Information Technology