The Diversity of Plastid Form and Function

Wise, Robert R.

doi:10.1007/978-1-4020-4061-0_1

Cited by 77 publications

(29 citation statements)

References 159 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…When dark-grown seedlings are transferred to the light, etioplasts are converted into chloroplasts. Chloroplast biogenesis from etioplasts is marked by the accumulation of chlorophyll (Wise, 2007;Pogson and Albrecht, 2011). Thus, we grew wildtype Arabidopsis and each of these mutants for 4 d in the dark, transferred them to 125 mmol m 22 s 21 broadspectrum white light for 24 h, and then quantified chlorophyll levels in each mutant.…”

Section: A Reverse Genetic Analysis Yields a High Frequency Of Enhancmentioning

confidence: 99%

“…Chloroplasts are derived from nonphotosynthetic proplastids during the development of photosynthetic organs such as cotyledons and leaves and are maintained until these photosynthetic organs senesce (Wise, 2007;Pogson and Albrecht, 2011). Regulated gene expression plays a major role in chloroplast biogenesis and maintenance and is complex on at least two levels: (1) chloroplast function requires the coordinated expression of both the nuclear and chloroplast genomes; and (2) the gene expression that drives chloroplast biogenesis is regulated by a number of environmental and endogenous cues.…”

mentioning

confidence: 99%

See 1 more Smart Citation

Plastids Are Major Regulators of Light Signaling in Arabidopsis

et al. 2012

View full text Add to dashboard Cite

We previously provided evidence that plastid signaling regulates the downstream components of a light signaling network and that this signal integration coordinates chloroplast biogenesis with both the light environment and development by regulating gene expression. We tested these ideas by analyzing light-and plastid-regulated transcriptomes in Arabidopsis (Arabidopsis thaliana). We found that the enrichment of Gene Ontology terms in these transcriptomes is consistent with the integration of light and plastid signaling (1) down-regulating photosynthesis and inducing both repair and stress tolerance in dysfunctional chloroplasts and (2) helping coordinate processes such as growth, the circadian rhythm, and stress responses with the degree of chloroplast function. We then tested whether factors that contribute to this signal integration are also regulated by light and plastid signals by characterizing T-DNA insertion alleles of genes that are regulated by light and plastid signaling and that encode proteins that are annotated as contributing to signaling, transcription, or no known function. We found that a high proportion of these mutant alleles induce chloroplast biogenesis during deetiolation. We quantified the expression of four photosynthesis-related genes in seven of these enhanced deetiolation (end) mutants and found that photosynthesis-related gene expression is attenuated. This attenuation is particularly striking for Photosystem II subunit S expression. We conclude that the integration of light and plastid signaling regulates a number of END genes that help optimize chloroplast function and that at least some END genes affect photosynthesis-related gene expression.

show abstract

Section: A Reverse Genetic Analysis Yields a High Frequency Of Enhancmentioning

confidence: 99%

mentioning

confidence: 99%

Plastids Are Major Regulators of Light Signaling in Arabidopsis

et al. 2012

View full text Add to dashboard Cite

show abstract

“…The chloroplast peripheral reticulum (PR) is a system of tubes and vesicles continuous with the chloroplast inner membrane (Laetsch 1974;Wise 2006). This structure was first described by Shumway and Weier (1967) for maize chloroplast, and soon it was reported in many other species.…”

Section: Introductionmentioning

confidence: 99%

The occurrence of chloroplast peripheral reticulum in grasses: a matter of phylogeny or a matter of function?

Szczepanik

Sowiński

2014

Acta Physiol Plant

View full text Add to dashboard Cite

The chloroplast peripheral reticulum (PR) is a structure of unknown function. Some authors postulated that it is a characteristic feature of C 4 plants, although it was reported from C 3 species as well. It is unknown whether the occurrence of PR follows a phylogenetic (it is found in clades containing C 4 species, regardless of the photosynthetic type) or functional (photosynthetic pathway dependent) pattern. Here, we present a phylogenetically controlled analysis of the occurrence, form and functional aspects of PR in grasses. The occurrence of the PR follows a functional and not a phylogenetic pattern. Its most elaborated form (PR type I) is a unique feature of C 4 species. Although PR was found in some of the studied C 3 grasses, it was always less developed than PR in the chloroplasts of Kranz mesophyll cells of C 4 species. The size of PR in C 4 plants was found to increase when the plants were grown under low light intensity. Additional observations, such as a negative correlation between PR size and chloroplast surface and PR occurrence in vicinity of mitochondria or plasmodesmata, suggest that PR may play some role in C 4 metabolism.

show abstract

“…The ancient cyanobateria are the last common ancestor of all oxygenic photosynthetic lineages, which have the closet evolutionary relationship with heliobacteria and other anaerobic photoautotrophs (Xiong et al, 2000), while photosynthetic eukaryotes acquired their photosynthetic properties from endosymbiosis with cyanobacteria (Gray, 1992;Reyes-Prieto and Bhattacharya, 2007). The green algae are primitive members of the kingdom Plantae from which land plants evolved approximately 500 million years ago (Parker et al, 2008, Wise, 2006. Due to the algal complex and the unique genetic and evolutionary scheme, the genetic engineering of algae must be considered to apply both of the methodologies from prokaryotic microorganisms and plants.…”

Section: Introductionmentioning

confidence: 99%