Nitric oxide

Fernández-Marcos, María; Sanz, Carlos; Lorenzo, Óscar

doi:10.4161/psb.18895

Cited by 58 publications

(12 citation statements)

References 16 publications

(15 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Essentially, this NO-driven DELLA accumulation can be interpreted as a reduction in tissue sensitivity to GA since a larger number of GA–GID1–DELLA complexes will need to be formed in order to mark an adequate quantity of DELLA proteins for proteasome degradation, thereby leading to a satisfactory level of transcriptional de-repression of GA-regulated genes. This differential effect of NO and GAs on DELLA regulation might account, at least in part, for the antagonism observed between these two signaling compounds during the regulation of physiological processes, such as hypocotyl elongation (Leon and Lozano-Juste, 2011) and primary root growth (Fernández-Marcos et al, 2012) in Arabidopsis .…”

Section: No–phytohormone Interactions: General Mechanisms and Implicamentioning

confidence: 99%

Nitric oxide and phytohormone interactions: current status and perspectives

2013

View full text Add to dashboard Cite

Nitric oxide (NO) is currently considered a ubiquitous signal in plant systems, playing significant roles in a wide range of responses to environmental and endogenous cues. During the signaling events leading to these plant responses, NO frequently interacts with plant hormones and other endogenous molecules, at times originating remarkably complex signaling cascades. Accumulating evidence indicates that virtually all major classes of plant hormones may influence, at least to some degree, the endogenous levels of NO. In addition, studies conducted during the induction of diverse plant responses have demonstrated that NO may also affect biosynthesis, catabolism/conjugation, transport, perception, and/or transduction of different phytohormones, such as auxins, gibberellins, cytokinins, abscisic acid, ethylene, salicylic acid, jasmonates, and brassinosteroids. Although still not completely elucidated, the mechanisms underlying the interaction between NO and plant hormones have recently been investigated in a number of species and plant responses. This review specifically focuses on the current knowledge of the mechanisms implicated in NO–phytohormone interactions during the regulation of developmental and metabolic plant events. The modifications triggered by NO on the transcription of genes encoding biosynthetic/degradative enzymes as well as proteins involved in the transport and signal transduction of distinct plant hormones will be contextualized during the control of developmental, metabolic, and defense responses in plants. Moreover, the direct post-translational modification of phytohormone biosynthetic enzymes and receptors through S-nitrosylation will also be discussed as a key mechanism for regulating plant physiological responses. Finally, some future perspectives toward a more complete understanding of NO–phytohormone interactions will also be presented and discussed.

show abstract

Section: No–phytohormone Interactions: General Mechanisms and Implicamentioning

confidence: 99%

Nitric oxide and phytohormone interactions: current status and perspectives

2013

View full text Add to dashboard Cite

show abstract

“…These findings suggest that GA participates in pollen tube response to low-temperature stress, whereas none of the GA signals or synthetic metabolism genes was detected in the DEGs of CK-VS-NO. In addition, María et al [ 73 ] speculated that high levels of NO content could influence the increase of DELLA activity through the disappearance of PIN-FORMED 1 (PIN1) and subsequently inhibit cell elongation in the elongation-differentiation zone in Arabidopsis . However, the PIN1 gene is not detected in CK-VS-NO.…”

Section: Discussionmentioning

confidence: 99%

Gene expression profile indicates involvement of NO in Camellia sinensis pollen tube growth at low temperature

Pan

Wang

et al. 2016

BMC Genomics

View full text Add to dashboard Cite

BackgroundNitric oxide (NO) functions as a critical signaling molecule in the low-temperature stress responses in plants, including polarized pollen tube growth in Camellia sinensis. Despite this, the potential mechanisms underlying the participation of NO in pollen tube responses to low temperature remain unclear. Here, we investigate alterations to gene expression in C. sinensis pollen tubes exposed to low-temperature stress and NO using RNA-Seq technology, in order to find the potential candidate genes related to the regulation of pollen tube elongation by NO under low-temperature stress.ResultsThree libraries were generated from C. sinensis cv. ‘Longjingchangye’ pollen tubes cultured at 25 °C (CsPT-CK) and 4 °C (CsPT-LT) or with 25 μM DEA NONOate (CsPT-NO). The number of unigenes found for the three biological replications were 39,726, 40,440 and 41,626 for CsPT-CK; 36,993, 39,070 and 39,439 for CsPT-LT; and 39,514, 38,298 and 39,061 for CsPT-NO. A total of 36,097 unique assembled and annotated sequences from C. sinensis pollen tube reads were found in a BLAST search of the following databases: NCBI non-redundant nucleotide, Swiss-prot protein, Kyoto Encyclopedia of Genes and Genomes, Cluster of Orthologous Groups of proteins, and Gene Ontology. The absolute values of log2Ratio > 1 and probability > 0.7 were used as the thresholds for significantly differential gene expression, and 766, 497 and 929 differentially expressed genes (DEGs) were found from the comparison analyses of the CK-VS-LT, CK-VS-NO and LT-VS-NO libraries, respectively. Genes related to metabolism and signaling pathways of plant hormones, transcription factors (TFs), vesicle polarized trafficking, cell wall biosynthesis, the ubiquitination machinery of the ubiquitin system and species-specific secondary metabolite pathways were mainly observed in the CK-VS-LT and CK-VS-NO libraries.ConclusionDifferentially expressed unigenes related to the inhibition of C. sinensis pollen tube growth under low temperature and NO are identified in this study. The transcriptomic gene expression profiles present a valuable genomic tool to improve studying the molecular mechanisms underlying low-temperature tolerance in pollen tube.Electronic supplementary materialThe online version of this article (doi:10.1186/s12864-016-3158-4) contains supplementary material, which is available to authorized users.

show abstract

“…A primary effect of P-deprivation in Arabidopsis , but certainly not in all plant species ( Niu et al, 2013 ), is the restriction of primary root growth ( Williamson, 2001 ; López-Bucio et al, 2002 ). It has been also observed that DELLAs exert a restriction on primary root growth ( Jiang et al, 2007 ) and that NO exerts a similar effect ( Fernández-Marcos et al, 2011 ) in a DELLAs partially dependent mode ( Fernández-Marcos et al, 2012 ). Therefore the possibility that NO and DELLAs interact under conditions of low P-supply has emerged.…”

Section: No and Plant Acclimation To Low Mineral Nutrient Supplymentioning

confidence: 99%

Plant Survival in a Changing Environment: The Role of Nitric Oxide in Plant Responses to Abiotic Stress

et al. 2015

View full text Add to dashboard Cite

Nitric oxide in plants may originate endogenously or come from surrounding atmosphere and soil. Interestingly, this gaseous free radical is far from having a constant level and varies greatly among tissues depending on a given plant’s ontogeny and environmental fluctuations. Proper plant growth, vegetative development, and reproduction require the integration of plant hormonal activity with the antioxidant network, as well as the maintenance of concentration of reactive oxygen and nitrogen species within a narrow range. Plants are frequently faced with abiotic stress conditions such as low nutrient availability, salinity, drought, high ultraviolet (UV) radiation and extreme temperatures, which can influence developmental processes and lead to growth restriction making adaptive responses the plant’s priority. The ability of plants to respond and survive under environmental-stress conditions involves sensing and signaling events where nitric oxide becomes a critical component mediating hormonal actions, interacting with reactive oxygen species, and modulating gene expression and protein activity. This review focuses on the current knowledge of the role of nitric oxide in adaptive plant responses to some specific abiotic stress conditions, particularly low mineral nutrient supply, drought, salinity and high UV-B radiation.

show abstract

Nitric oxide

Cited by 58 publications

References 16 publications

Nitric oxide and phytohormone interactions: current status and perspectives

Nitric oxide and phytohormone interactions: current status and perspectives

Gene expression profile indicates involvement of NO in Camellia sinensis pollen tube growth at low temperature

Plant Survival in a Changing Environment: The Role of Nitric Oxide in Plant Responses to Abiotic Stress

Contact Info

Product

Resources

About