Response of the thylakoid proteome of Synechocystis sp. PCC 6803 to photohinibitory intensities of orange-red light

Cordara, Alessandro; Manfredi, Marcello; Alphen, Pascal van; Marengo, Emílio; Pirone, Raffaele; Saracco, Guido; Santos, Filipe Branco dos; Hellingwerf, Klaas J.; Pagliano, Cristina

doi:10.1016/j.plaphy.2018.10.002

Cited by 2 publications

(1 citation statement)

References 57 publications

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“…Proteomics studies have improved our understanding of the molecular mechanisms involved in plant stress tolerance [11]. Thus far, the proteomes of several cyanobacteria have also been studied during response to different stresses [12][13][14], including Arthrospira platensis and Synechocystis sp. PCC 6803.…”

Section: Introductionmentioning

confidence: 99%

Proteome profiling reveals changes in energy metabolism, transport and antioxidation during drought stress in Nostoc flagelliforme

Ding

Wang

et al. 2022

BMC Plant Biol

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Background Drought is an important abiotic stress that constrains the growth of many species. Despite extensive study in model organisms, the underlying mechanisms of drought tolerance in Nostoc flagelliforme remain elusive. Results We characterized the drought adaptation of N. flagelliforme by a combination of proteomics and qRT-PCR. A total of 351 differentially expressed proteins involved in drought stress adaptation were identified. It was found that the expression of several nutrient influx transporters was increased, including molybdate ABC transporter substrate binding protein (modA), sulfate ABC transporter substrate-binding protein (sbp) and nitrate ABC transporter (ntrB), while that of efflux transporters for toxic substances was also increased, including arsenic transporting ATPase (ArsA), potassium transporter (TrkA) and iron ABC transporter substrate-binding protein (VacB). Additionally, photosynthetic components were reduced while sugars built up during drought stress. Non-enzymatic antioxidants, orange carotenoid protein (OCP) homologs, cytochrome P450 (CYP450), proline (Pro) and ascorbic acid (AsA) were all altered during drought stress and may play important roles in scavenging reactive oxygen species (ROS). Conclusion In this study, N. flagelliforme may regulates its adaptation to drought stress through the changes of protein expression in photosynthesis, energy metabolism, transport, protein synthesis and degradation and antioxidation. Highlights • A total of 351 DEPs involved in adaptation to drought stress were identified. • Changes in the expression of six OCP homologs were found in response to drought stress. • Differential expression of transporters played an important role in drought stress adaptation. • Most PSII proteins were downregulated, while PSI proteins were unchanged in response to drought stress. • Sugar metabolism was upregulated in response to drought stress.

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