Fungal photobiology: visible light as a signal for stress, space and time

Fuller, Kevin K.; Loros, Jennifer J.; Dunlap, Jay C.

doi:10.1007/s00294-014-0451-0

Cited by 121 publications

(121 citation statements)

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“…; Fuller et al. ). Indeed, we found three of the four CPF members in U. maydis including phr1 and phr2 among the light‐induced genes (Table ).…”

Section: Discussionmentioning

confidence: 97%

“…White collar 1-induced photolyase expression contributes to UV-tolerance of Ustilago maydis water, temperature, and oxygen. These changes are also reflected in their light environment (fluence rates, spectral composition) Fuller et al 2015). One common aspect of light-regulated fungal development is reproduction.…”

Section: Original Researchmentioning

confidence: 99%

“…; Fuller et al. ). The photobiology and the role of specific photoreceptors have been so far investigated in detail in Neurospora crassa , Trichoderma sp., Aspergillus nidulans , Fusarium sp., Magnaporthe oryzae (Ascomycota); Cryptococcus neoformans , Coprinopsis cinerea (Basidomycota); Phycomyces blakesleeanus , and Mucor circinelloides (Mucormycotina).…”

Section: Introductionmentioning

confidence: 97%

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White collar 1‐induced photolyase expression contributes to UV ‐tolerance of Ustilago maydis

et al. 2015

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Ustilago maydis is a phytopathogenic fungus causing corn smut disease. It also is known for its extreme tolerance to UV‐ and ionizing radiation. It has not been elucidated whether light‐sensing proteins, and in particular photolyases play a role in its UV‐tolerance. Based on homology analysis, U. maydis has 10 genes encoding putative light‐responsive proteins. Four amongst these belong to the cryptochrome/photolyase family (CPF) and one represents a white collar 1 ortholog (wco1). Deletion mutants in the predicted cyclobutane pyrimidine dimer CPD‐ and (6–4)‐photolyase were impaired in photoreactivation. In line with this, in vitro studies with recombinant CPF proteins demonstrated binding of the catalytic FAD cofactor, its photoreduction to fully reduced FADH − and repair activity for cyclobutane pyrimidine dimers (CPDs) or (6–4)‐photoproducts, respectively. We also investigated the role of Wco1. Strikingly, transcriptional profiling showed 61 genes differentially expressed upon blue light exposure of wild‐type, but only eight genes in the Δwco1 mutant. These results demonstrate that Wco1 is a functional blue light photoreceptor in U. maydis regulating expression of several genes including both photolyases. Finally, we show that the Δwco1 mutant is less tolerant against UV‐B due to its incapability to induce photolyase expression.

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“…; Fuller et al. ). Indeed, we found three of the four CPF members in U. maydis including phr1 and phr2 among the light‐induced genes (Table ).…”

Section: Discussionmentioning

confidence: 97%

Section: Original Researchmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 97%

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White collar 1‐induced photolyase expression contributes to UV ‐tolerance of Ustilago maydis

et al. 2015

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“…In fungi, the presence of light may signal high temperature, the presence of genotoxic ultra-violet (UV) radiation, or the soil/air interface for optimal spore dispersal. In some fungi, light also serves to cue the organism’s internal timekeeping system, termed the circadian clock, to anticipate daily environmental fluctuations (Idnurm et al , 2010; Rodriguez-Romero et al , 2010, Fuller et al ., 2014; Fuller et al ., 2014b). In this review, we will begin by discussing the molecular sensing apparatus of Neurospora crassa , the organism in which the light response is most thoroughly described and from which the first bone fide photoreceptors were cloned (Ballario et al , 1996).…”

Section: Introductionmentioning

confidence: 99%

Seeing the world differently: variability in the photosensory mechanisms of two model fungi

Dasgupta

Fuller

Dunlap

et al. 2015

Environmental Microbiology

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Summary Light plays an important role for most organisms on this planet, serving either as a source of energy or information for the adaptation of biological processes to specific times of day. The fungal kingdom is estimated to contain well over a million species, possibly ten-fold more, and it is estimated that a majority of the fungi respond to light, eliciting changes in several physiological characteristics including pathogenesis, development and secondary metabolism. Two model organisms for photobiological studies have taken center-stage over the last few decades – Neurospora crassa and Aspergillus nidulans. In this review, we will first discuss our understanding of the light response in N. crassa, about which the most is known, and will then juxtapose N. crassa with A. nidulans which, as will be described below, provides an excellent template for understanding photosensory cross-talk. Finally, we will end with a commentary on the variability of the light response among other relevant fungi, and how our molecular understanding in the aforementioned model organisms still provides a strong base for dissecting light responses in such species.

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“…The surge in fungal genome-sequencing projects has catalyzed the identification of fungal photoreceptors in many other species and their role in the photobiology of fungi is being actively investigated. Fuller et al (2014) summarize in their review "Fungal photobiology: visible light as a signal for stress, space and time" our current knowledge on fungal photobiology with a detailed description of the role of the different types of photoreceptors in N. crassa and other fungi. The discovery that some pathogenic fungi use light as a signal during pathogenesis suggests new avenues of research to understand the mechanism of environmental sensing by fungal pathogens and new approaches to treat diseases using photoreceptors as antifungal targets.…”

Section: Topics Covered In This Special Issuementioning

confidence: 99%

Fungal stress biology: a preface to the Fungal Stress Responses special edition

et al. 2015

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There is currently an urgent need to increase global food security, reverse the trends of increasing cancer rates, protect environmental health, and mitigate climate change. Toward these ends, it is imperative to improve soil health and crop productivity, reduce food spoilage, reduce pesticide usage by increasing the use of biological control, optimize bioremediation of polluted sites, and generate energy from sustainable sources such as biofuels. This review focuses on fungi that can help provide solutions to such problems. We discuss key aspects of fungal stress biology in the context of the papers published in this Special Issue of Current Genetics. This area of biology has relevance to pure and applied research on fungal (and indeed other) systems, including biological control of insect pests, roles of saprotrophic fungi in agriculture and forestry, mycotoxin contamination of the food-supply chain, optimization of microbial fermentations including those used for bioethanol production, plant pathology, the limits of life on Earth, and astrobiology.

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Fungal photobiology: visible light as a signal for stress, space and time

Cited by 121 publications

References 115 publications

White collar 1‐induced photolyase expression contributes to UV ‐tolerance of Ustilago maydis

White collar 1‐induced photolyase expression contributes to UV ‐tolerance of Ustilago maydis

Seeing the world differently: variability in the photosensory mechanisms of two model fungi

Fungal stress biology: a preface to the Fungal Stress Responses special edition

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