Conserved roles of ETT and ARF4 in gynoecium development in Brassicaceae with distinct fruit shapes.

Gynoecium patterning is dependent on the dynamic distribution of auxin, the signalling of which is transduced through several distinct pathways. ETTIN (ETT)-mediated signalling occurs independently of the canonical auxin pathway, and ETT shares partial redundancy with Auxin Response Factor 4 (ARF4) in the gynoecium. ETT and ARF4 were previously hypothesized to translate auxin gradients into patterns of tissue polarity alongside other ARFs.

AUXIN RESPONSE FACTOR 16 (StARF16) regulates defense gene StNPR1 upon infection with necrotrophic pathogen in potato.

We demonstrate a new regulatory mechanism in the jasmonic acid (JA) and salicylic acid (SA) mediated crosstalk in potato defense response, wherein, miR160 target StARF16 (a gene involved in growth and development) binds to the promoter of StNPR1 (a defense gene) and negatively regulates its expression to suppress the SA pathway. Overall, our study establishes the importance of StARF16 in regulation of StNPR1 during JA mediated defense response upon necrotrophic pathogen interaction. Plants employ antagonistic crosstalk between salicylic acid (SA) and jasmonic acid (JA) to effectively defend them from pathogens.

Molecular signals that govern tuber development in potato.

The potato serves as the fourth most important food crop on the planet after the three cereal crops. It is rich in starch, storage proteins and important vitamins, dietary antioxidants and minerals. Potato is a modified stem (stolon) that grows underground, at the base of the plant, under favourable conditions.

Direct ETTIN-auxin interaction controls chromatin states in gynoecium development.

Hormonal signalling in animals often involves direct transcription factor-hormone interactions that modulate gene expression. In contrast, plant hormone signalling is most commonly based on de-repression via the degradation of transcriptional repressors. Recently, we uncovered a non-canonical signalling mechanism for the plant hormone auxin whereby auxin directly affects the activity of the atypical auxin response factor (ARF), ETTIN towards target genes without the requirement for protein degradation.

MicroRNA160 regulates leaf curvature in potato ( L. cv. Désirée).

Leaf development is a complex process and factors such as size, shape, curvature, compounding, and texture determine the final leaf morphology. MicroRNA160 is one of the crucial players that has been shown to regulate lamina formation and compounding in tomato. In this study, we show that miR160 also regulates leaf curvature in potato.

Mobile RNAs and proteins: Prospects in storage organ development of tuber and root crops.

Storage tuber and root crops make up a significant portion of the world's subsistence food supply. Because of their importance in food security, yield enhancement has become a priority. A major focus has been to understand the biology of belowground storage organ development.

MiRNA160 is associated with local defense and systemic acquired resistance against Phytophthora infestans infection in potato.

To combat pathogen infection, plants employ local defenses in infected sites and elicit systemic acquired resistance (SAR) in distant tissues. MicroRNAs have been shown to play a significant role in local defense, but their association with SAR is unknown. In addition, no such studies of the interaction between potato and Phytophthora infestans have been reported.

Adverse events associated with ultrasonic scalers: A manufacturer and user facility device experience database analysis.

Background: The present study was conducted to determine the frequency and type of adverse events (AEs) associated with ultrasonic scaler reported to the Food and Drug Administration manufacturer and user facility device experience (MAUDE) database.

Materials And Methods: The authors reviewed the ultrasonic scaler units (USU) related AEs reported to MAUDE from October 1, 1995, to September 31, 2015. Analyses of details collected are presented.

MicroRNA156: a potential graft-transmissible microRNA that modulates plant architecture and tuberization in Solanum tuberosum ssp. andigena.

MicroRNA156 (miR156) functions in maintaining the juvenile phase in plants. However, the mobility of this microRNA has not been demonstrated. So far, only three microRNAs, miR399, miR395, and miR172, have been shown to be mobile.