Bacteria enable beetles to digest leaves

Many animals are herbivores. However, the plant cell wall contains cellulose and pectin – both of which are very difficult to digest and require specific enzymes for their break down. Throughout evolution many symbioses between microbes and herbivores have emerged in order to derive the most use out of their vegetable nourishment. The thistle tortoise beetles are an extraordinary example for such a symbiosis.

How bacteria and algae talk

Microbes often live in complex biosystems. Their co-habitation is regulated by a number of chemical signals. Researchers from Jena now identified the mechanism that causes Chlamydomonas reinhardtii, roughly ten micrometer in size, to lose their flagella within minutes of coming close to Pseudomonas protegens bacteria, which are merely two micrometers in size.

Nanotechnology allows for larger 3D structures

Using the "DNA-origami-technique" researchers can fold single DNA strands into a three-dimensional double-stranded structure. Biophysicist Hendrik Dietz, Professor of Biomolecular Nanotechnology at TU Munich, is an expert of this field and has now developed a new way to make the tiny DNA origami structures larger by transfering viral construction principles to DNA origami technology. This enables him and his team to design and build much larger structures than before – now on the scale of viruses and cell organelles.

Greentech start-ups looking for investors

There is a lively start-up scene in Germany. It is supported and funded by the federal ministry as well as other sponsors via the Business Angels Netzwerk Deutschland e.V. (BAND). Many of the new businesses develop innovative ideas regarding energy and resource efficiency and are thus thematically on point for the 17 Sustainable Development Goals (SDG) drawn up by the United Nations as part of the Agenda 2030.

Bioengineering improves photosynthesis

The number of people on the planet and thus the number of hungry mouths to feed is constantly growing and is expected to exceed 9 billion by the year 2050. Thus, there is an urgent need to improve crop yield for food output. To meet this demand, researchers lead by Manajit Hayer-Hartl at the Max Planck Institute of Biochemistry in Munich aim to increase the efficiency of photosynthesis and thus crop productivity by artificially engineering the plant Rubisco enzyme.

Transforming plants into bio-factories

Plants produce a number of metabolites with diverse functions. Many of these metabolites are not only useful to the plant itself, but also have positive effects in humans and animals. However, the extraction of these compounds in sufficient quantities from the naturally producing resources is often laborious and costly. While some metabolites can be produced in bacteria, so far none can be manufactured in plants themselves.