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Introduction: Levels of plant-based aeroallergens are rising as growing seasons lengthen and intensify with anthropogenic climate change. Increased exposure to pollens could increase risk for mortality from respiratory causes, particularly among older adults. We determined short-term, lag associations of four species classes of pollen (ragweed, deciduous trees, grass pollen and evergreen trees) with respiratory mortality (all cause, chronic and infectious related) in Michigan, USA.

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The purpose of this study was to compare the efficacy and safety of subcutaneous, sublingual, oral specific immunotherapy in patients who suffer from allergic conditions to pollen from trees, grasses and weeds, house dust mites and Alternaria alternata spores. A literature search was performed separately for each type of allergen and each administration route of the drug. As a result, it was found that all administration routes were quite effective.

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Mitochondrial genome structural variants and candidate cytoplasmic male sterility-related gene in sugarcane.

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State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangxi Key Laboratory of Sugarcane Biology, College of Agriculture, Guangxi University, Nanning, 530004, China.

Background: Sugarcane is a crucial crop for both sugar and bioethanol production. The nobilization breeding and utilization of wild germplasm have significantly enhanced its productivity. However, the pollen sterility in Saccharum officinarum restricts its role to being a female parent in crosses with Saccharum spontaneum during nobilization breeding, resulting in a narrow genetic basis for modern sugarcane cultivars.

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Overexpression of the general transcription factor OsTFIIB5 alters rice development and seed quality.

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Interdisciplinary Centre for Plant Genomics and Department of Plant Molecular Biology, University of Delhi, South Campus (UDSC), Benito Juarez Marg, New Delhi, 110021, India.

Overexpression of general transcription factor OsTFIIB5 in rice affects seedling growth, plant height, flowering time, panicle architecture, and seed protein/starch levels and involves modulation of expression of associated genes. TFIIB, a key general transcription factor (GTF), plays a critical role in pre-initiation complex (PIC) formation and facilitates RNA polymerase II-mediated transcription. In humans and yeast, TFIIB is encoded by a single gene; however, in plants it is encoded by a multigene family whose products may perform specialized transcriptional functions.

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