2017
DOI: 10.1371/journal.pone.0180186
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Genetic dissection of the Arabidopsis spaceflight transcriptome: Are some responses dispensable for the physiological adaptation of plants to spaceflight?

Abstract: Experimentation on the International Space Station has reached the stage where repeated and nuanced transcriptome studies are beginning to illuminate the structural and metabolic differences between plants grown in space compared to plants on the Earth. Genes that are important in establishing the spaceflight responses are being identified, their roles in spaceflight physiological adaptation are increasingly understood, and the fact that different genotypes adapt differently is recognized. However, the basic q… Show more

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Cited by 62 publications
(83 citation statements)
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“…Genes associated with general stress responses and environmental stimuli were prominent, as well as those annotated to terms related to defense responses. DEGs associated with these defense and stress pathways have been noted in the FLT vs. GC comparisons of previous studies (e.g., Correll et al, 2013;Paul et al, 2013Paul et al, , 2017Choi et al, 2019). Genes involved in responses to salicylic acid, a phytohormone linked to both plant defense signaling and regulation of plant development (Klessig et al, 2018), were also enriched.…”
Section: Col-0 and Spr1mentioning
confidence: 66%
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“…Genes associated with general stress responses and environmental stimuli were prominent, as well as those annotated to terms related to defense responses. DEGs associated with these defense and stress pathways have been noted in the FLT vs. GC comparisons of previous studies (e.g., Correll et al, 2013;Paul et al, 2013Paul et al, , 2017Choi et al, 2019). Genes involved in responses to salicylic acid, a phytohormone linked to both plant defense signaling and regulation of plant development (Klessig et al, 2018), were also enriched.…”
Section: Col-0 and Spr1mentioning
confidence: 66%
“…Extensive discussion of the relevance of skewing and waving in microgravity has been presented elsewhere (e.g., Paul et al, 2012a), but to paraphrase from that paper, prior to spaceflight research, the consensus was that gravitropism was the directional driver in skewing (e.g., Simmons et al, 1995;Oliva and Dunand, 2007). Yet we now know that gravity is not required, and root skewing in spaceflight appears to be an inherent feature of many Arabidopsis ecotypes, even in conditions lacking both light and gravity (Millar et al, 2011;Paul et al, 2012aPaul et al, , 2017Nakashima et al, 2014). These observations suggest a testable relationship among root morphologies governed by skewing regulation pathways.…”
Section: Introductionmentioning
confidence: 99%
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“…to the spaceflight environment. Plant root growth in microgravity exhibits skewing and waving behavior (Paul et al., ), insightful patterns of phytohormone distribution in the primary root tips (Ferl and Paul, ), and distinct patterns of gene expression and protein utilization (Paul et al., , , ; Ferl et al., ). Recent studies have focused on the root apex, with its crucial role in root growth and morphogenesis, guided by the apex's sensitivity to environmental factors such as gravity, light, and nutrients.…”
Section: Root Apexes and Their Importancementioning
confidence: 99%