Photosynthesis in Tall Fescue

Krueger, Roger W.; Randall, Douglas D.; Miles, Donald

doi:10.1104/pp.76.4.903

Plant Physiol.

1984

DOI: 10.1104/pp.76.4.903

|View full text |Cite

Photosynthesis in Tall Fescue

Roger W. Krueger

Douglas D. Randall²,

Donald Miles³

Abstract: Previous work in our laboratory An allopolyploid series of tall fescue (Festuca arundinacea, Schreb.) was originally collected to study photosynthesis potential in wild tall fescue relatives varying in polyploidy (18,22,26,28). We examined the light-driven reactions in the chloroplast thylakoids using this series (21,22

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...

Citation Types

Supporting

Mentioning

Contrasting

Year Published

1993

2009

Publication Types

Select...

Article4

Relationship

Self Cite0

Independent4

Authors

Journals

Cited by 4 publications

References 16 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

Effect of growth irradiance on plastocyanin levels in barley

Burkey

1993

Photosynth Res

View full text Add to dashboard Cite

Plastocyanin levels in barley (Hordeum vulgare cv Boone) were found to be dependent on growth irradiance. An immunochemical assay was developed and used to measure the plastocyanin content of isolated thylakoid membranes. Barley grown under 600 μmole photons m(-2)s(-1) contained two- to four-fold greater quantities of plastocyanin per unit chlorophyll compared with plants grown under 60 μmole photons m(-2)s(-1). The plastocyanin/Photosystem I ratio was found to be 2 to 3 under high irradiance compared with 0.5 to 1.5 under low irradiance. The reduced plastocyanin pool size in low light plants contributed to a two-fold reduction in photosynthetic electron transport activity. Plastocyanin levels increased upon transfer of low light plants to high irradiance conditions. In contrast, plastocyanin levels were not affected in plants transferred from high to low irradiance, suggesting that plastocyanin is not involved in the acclimation of photosynthesis to shade.

show abstract

Effect of growth irradiance on plastocyanin levels in barley

Burkey

1993

Photosynth Res

View full text Add to dashboard Cite

show abstract

Genetic variation in soybean photosynthetic electron transport capacity is related to plastocyanin concentration in the chloroplast

1996

View full text Add to dashboard Cite

Fifteen ancestral genotypes of United States soybean cultivars were screened for differences in photosynthetic electron transport capacity using isolated thylakoid membranes. Plants were grown in controlled environment chambers under high or low irradiance conditions. Thylakoid membranes were isolated from mature leaves. Photosynthetic electron transport was assayed as uncoupled Hill activity using 2,6-dichlorophenolindophenol (DCIP). Soybean electron transport activity was dependent on genotype and growth irradiance and ranged from 6 to 91 mmol DCIP reduced [mol chlorophyll](-1) s(-1). Soybean plastocyanin pool size ranged from 0.1 to 1.3 mol plastocyanin [mol Photosystem I](-1). In contrast, barley and spinach electron transport activities were 140 and 170 mmol DCIP reduced [mol chlorophyll](-1) s(-1), respectively, with plastocyanin pool sizes of 3 to 4 mol plastocyanin [mol Photosystem I](-1). No significant differences in the concentrations of Photosystem II, plastoquinone, cytochrome b6f complexes, or Photosystem I were observed. Thus, genetic differences in electron transport activity were correlated with plastocyanin pool size. The results suggested that plastocyanin pool size can vary significantly and may limit photosynthetic electron transport capacity in certain species such as soybean. Soybean plastocyanin consisted of two isoforms with apparent molecular masses of 14 and 11 kDa, whereas barley and spinach plastocyanins each consisted of single polypeptides of 8 and 12 kDa, respectively.

show abstract

Genetic variation of photosynthetic electron transport in barley: identification of plastocyanin as a potential limiting factor

Burkey

1994

Plant Science

View full text Add to dashboard Cite

scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.

Contact Info

hi@scite.ai

10624 S. Eastern Ave., Ste. A-614

Henderson, NV 89052, USA

Blog Terms and Conditions API Terms Privacy Policy Contact Cookie Preferences Do Not Sell or Share My Personal Information

Made with 💙 for researchers

Part of the Research Solutions Family.

Photosynthesis in Tall Fescue

Cited by 4 publications

References 16 publications

Effect of growth irradiance on plastocyanin levels in barley

Effect of growth irradiance on plastocyanin levels in barley

Genetic variation in soybean photosynthetic electron transport capacity is related to plastocyanin concentration in the chloroplast

Genetic variation of photosynthetic electron transport in barley: identification of plastocyanin as a potential limiting factor

Contact Info

Product

Resources

About