How plants sense low oxygen

Pucciariello, Chiara; Perata, Pierdomenico

doi:10.4161/psb.20322

Cited by 16 publications

(7 citation statements)

References 35 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The presence of ROS under oxygen deprivation stress may seem counterintuitive because oxygen is needed for ROS production. The ability to sense the drop in sugar content following submergence and ROS production under anoxia are believed to be potential candidates for oxygen‐sensing mechanism in plants (Pucciariello and Perata ). As energy and carbohydrate supply from photosynthesis is needed for growth, post‐submergence growth recovery may require efficient photosynthetic acclimation to increased O 2 and irradiance to minimize photooxidative damage (Luo et al ).…”

Section: Introductionmentioning

confidence: 99%

Inter‐ and intraspecific variability in physiological traits and post‐anoxia recovery of photosynthetic efficiency in grasses under oxygen deprivation

Pompeiano

Reyes

Moles

et al. 2017

Physiologia Plantarum

View full text Add to dashboard Cite

Low oxygen conditions occur in grass sites due to high and frequent precipitation, poor soil quality, and over-irrigation followed by slow drainage. Three warm-season and one cool-season grass were analyzed at metabolic level during a time-course experiment performed in a controlled anoxic environment. Prolonged oxygen depletion proved detrimental by leading to premature death to all the species, with the exception of seashore paspalum. Moreover, the anoxia tolerance observed in these grasses has been associated with slow use of carbohydrates, rather than with their relative abundance, which was more important than their antioxidant capacity. Further physiological characterization of eight seashore paspalum genotypes to anoxia was also performed, by examining the variation in photosystem II (PSII) efficiency and gas exchange during post-anoxia recovery. Multivariate analysis highlighted the presence of three main clusters of seashore paspalum genotypes, characterized by different ability to restore the PSII photochemistry during recovery after one day of anoxia. Taken together, our data demonstrate that the analysis of post-anoxia recovery of fluorescence and gas exchange parameters can represent a fast and reliable indicator for selecting species and cultivars more able to acclimate their photosynthetic apparatus.

show abstract

Section: Introductionmentioning

confidence: 99%

Inter‐ and intraspecific variability in physiological traits and post‐anoxia recovery of photosynthetic efficiency in grasses under oxygen deprivation

Pompeiano

Reyes

Moles

et al. 2017

Physiologia Plantarum

View full text Add to dashboard Cite

show abstract

“…Reactive oxygen species (ROS) formed in plants exposed to low O 2 are produced by an NADPH oxidase on the plasma membrane (Baxter‐Burrel et al ; Pucciariello et al ) and/or by the mitochondrial electron transport chain (mETC, Chang et al ). A ROS‐dependent signalling cascade may represent an additional mechanism to signal stress, independently of low O 2 sensing (Pucciariello & Perata ). Interestingly, a link between O 2 sensing and ROS signalling has been recently described (Gonzali et al ).…”

Section: Introductionmentioning

confidence: 99%

New insights into reactive oxygen species and nitric oxide signalling under low oxygen in plants

Pucciariello

Perata

2016

Plant Cell & Environment

Self Cite

112

View full text Add to dashboard Cite

Plants produce reactive oxygen species (ROS) when exposed to low oxygen (O ). Much experimental evidence has demonstrated the existence of an oxidative burst when there is an O shortage. This originates at various subcellular sites. The activation of NADPH oxidase(s), in complex with other proteins, is responsible for ROS production at the plasma membrane. Another source of low O -dependent ROS is the mitochondrial electron transport chain, which misfunctions when low O limits its activity. Arabidopsis mutants impaired in proteins playing a role in ROS production display an intolerant phenotype to anoxia and submergence, suggesting a role in acclimation to stress. In rice, the presence of the submergence 1A (SUB1A) gene for submergence tolerance is associated with a higher capacity to scavenge ROS. Additionally, the destabilization of group VII ethylene responsive factors, which are involved in the direct O sensing mechanism, requires nitric oxide (NO). All this evidence suggests the existence of a ROS and NO - low O mechanism interplay which likely includes sensing, anaerobic metabolism and acclimation to stress. In this review, we summarize the most recent findings on this topic, formulating hypotheses on the basis of the latest advances.

show abstract

“…Anoxic conditions have been reported to affect several glycolytic enzymes (Guglielminetti et al, 1995a;Bouny and Saglio, 1996;Fox et al, 1998) and various aspects of the molecular regulation of these induction have been recently clarified (Licausi et al, 2011;Pucciariello and Perata, 2012). Phosphorylation of fructose under anoxia has been suggested to support the energetic status of rice tissues (Perata et al, 1998).…”

Section: Discussionmentioning

confidence: 99%

“…On the contrary, rice can germinate in the presence of ethanol at high concentrations although the phenotype of rice seedlings is affected by the presence of ethanol. Recently, data and hypothesis on the mechanism by which plants can sense the absence of oxygen have been reported, but the role of ethanol is supposed to be involved in the modulation of the plant's response to anoxia (Pucciariello and Perata, 2012).…”

Section: Discussionmentioning

confidence: 99%