Overexpression of a pseudo-etiolated-in-light-like protein in leads to a pale green phenotype and enables transcriptome-based network analysis of photomorphogenesis and isoprenoid biosynthesis.

Introduction: Plant growth and greening in response to light require the synthesis of photosynthetic pigments such as chlorophylls and carotenoids, which are derived from isoprenoid precursors. In , the pseudo-etiolated-in-light phenotype is caused by the overexpression of (), which regulates chlorophyll synthesis and photosynthetic genes.

Methods: We investigated a homologous protein in the Russian dandelion () to determine its influence on the rich isoprenoid network in this species, using a combination of analysis, gene overexpression, transcriptomics and metabolic profiling.

Natural rubber reduces herbivory and alters the microbiome below ground.

Laticifers are hypothesized to mediate both plant-herbivore and plant-microbe interactions. However, there is little evidence for this dual function. We investigated whether the major constituent of natural rubber, cis-1,4-polyisoprene, a phylogenetically widespread and economically important latex polymer, alters plant resistance and the root microbiome of the Russian dandelion (Taraxacum koksaghyz) under attack of a root herbivore, the larva of the May cockchafer (Melolontha melolontha).

Microscopic and Transcriptomic Analysis of Pollination Processes in Self-Incompatible .

The transition of the Russian dandelion (Asteraceae) to a profitable, alternative crop producing natural rubber and inulin requires the optimization of several agronomic traits, cultivation conditions and harvesting procedures to improve the yield. However, efficient breeding is hindered by the obligatory sexual outcrossing of this species. Several other asters have been investigated to determine the mechanism of self-incompatibility, but the underlying molecular basis remains unclear.

[A toddler with yellow nodules].

A 1.5 year-old boy is diagnosed with juvenile xanthogranuloma. Juvenile xanthogranuloma is a benign proliferation of histiocytes, which is generally self-limiting.

Comparative proteome and metabolome analyses of latex-exuding and non-exuding Taraxacum koksaghyz roots provide insights into laticifer biology.

Taraxacum koksaghyz has been identified as one of the most promising alternative rubber crops. Its high-quality rubber is produced in the latex of laticifers, a specialized cell type that is organized in a network of elongated tubules throughout the entire plant body. In order to gain insights into the physiological role(s) of latex and hence laticifer biology, we examine the effects of barnase-induced latex RNA degradation on the metabolite and protein compositions in the roots.