+ Site Statistics
+ Resolve Accession
+ Subscribe to Site Feeds
EurekaMag Most Shared ContentMost Shared
EurekaMag PDF Full Text ContentPDF Full Text
+ PDF Full Text
Request PDF Full TextRequest PDF Full Text
Submit PDF Full TextSubmit PDF Full Text
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter
Follow on Google+Follow on Google+
Follow on LinkedInFollow on LinkedIn

+ Translate

Spectral properties of a longwave absorbing form of proto chlorophyll in seeds of cyclanthera explodens

, : Spectral properties of a longwave absorbing form of proto chlorophyll in seeds of cyclanthera explodens. Physiologia Plantarum 48(2): 297-301

The in vivo absorbance spectrum in the inner seed coat of C. explodens Naud. showed a main peak in the red region at 671 nm and a weak shoulder at about 640 nm. The pigments were extracted with acetone, separated by paper chromatography and analyzed spectrophotometrically. The only detectable pigment was protochlorophyll. The in vivo fluorescence emission spectra had 2 main peaks, 1 at 632 and 1 at 691 nm. The relation between the 2 peaks was changed when the excitation wavelength was altered from 440 and 460 nm. Excitation at 420 nm gave an additional fluorescence emission peak at 595 nm. These data indicate the presence of at least 3 forms of protochlorophyll in the Cyclanthera seed coat. The spectrum of circular dichroism had a very intense and characteristic signal in the red region with a negative asymmetrical Cotton effect [664 (+), 669 (0) and 687 (-) nm]. This indicates that at least one of the protochlorophyll forms is present in a more or less crystalline form.

(PDF 0-2 workdays service)

Order PDF Full Text


Click here to order any other PDF Full Text

Accession: 006459761

PDF Full Text: Submit

Submit PDF Full Text

No spam - Every submission is manually reviewed

Due to poor quality, we do not accept files from Researchgate

Submitted PDF Full Texts will always be free for everyone
(We only charge for PDFs that we need to acquire)

Select a PDF file:

Other references

Wei Siao; Jia-Yi Chen; Hui-Hsin Hsiao; Ping Chung; Shu-Jen Wang, 2011: Characterization of OsSUT2 Expression and Regulation in Germinating Embryos of Rice Seeds. <i>OsSUT2</i> encodes a putative sucrose transporter containing 12 transmembrane domains in rice plants. Subcellular localization of the OsSUT2::GFP fusion protein indicated that OsSUT2 is a cell membrane protein. In embryos of germina...

Giorgi, D. R.; Reis, J. B. dos; Bei, A.; Rei, J. B. dos, Filho, 1974: Cryptococcosis of the central nervous system. Current experience in the neurology department of the Paulista School of Medicine. Cryptococcal meningitis was diagnosed in 35 patients by India-ink testing of the spinal fluid during 1953-72, and a further case of spinal cord granuloma is recorded. The 36 cases were distributed more or less evenly over the 20 yr. The patients w...

Lister Hal, 1953: Report on glaciology at Breidamerkurjoekull 1951. Summarizes results of investigations carried out on Breidamerkurjoekull, Iceland, to determine the relation of supra- and englacial rock debris to the process of ablation.

Klussmann, F. W.; Citters, R. L. Van; Rushmer, R. F., 1960: Cardiovascular effects of distortion of stretch receptors in the cardiac walls. FED PROC 19(1 Pt 1): 92

Clausen, M., 1953: F Isolation and pure culture of cocci rendering beer turbid. Yeast water, Bettges-Heller broth and unhopped wort (8-10%), or solid nutrients such as yeast water-agar, yeast water-gelatin, nutrient agar, nutrient gelatin, and unhopped wort agar may be used. A specimen of infected yeast is inoculated into Bet...

Anonymous, 2011: Incidence of amyotrophic lateral sclerosis in the Faroe Islands. The establishment of variations in the incidence of amyotrophic lateral sclerosis (ALS) in the Faroese population from that found in other general populations may point to risk factors for the development of this disease among the Faroese. The aim...

Bader, C; Sepasgosarian, H., 1980: Water mites (Acari, Prostigmata, Hydrachenllae) from Iran. 3. Entomologische Mitteilungen aus dem Zoologischen Museum Hamburg Hamburg Zoologisches Institut und Zoologisches Museum, 6(110): 381-392

Day, R. W., 1994: Swell-shrink behavior of compacted clay. The effects of wetting and drying on the swell-shrink behaviour and shear strength of a compacted clay soil were assessed at temperatures representative of field conditions. Implications for civil engineering are discussed.

Coffey, Sarah, M.; Cook, Kylee; Tartaglia, Nicole; Tassone, Flora; Nguyen, Danh, V.; Pan, Ruiqin; Bronsky, Hannah, E.; Yuhas, Jennifer; Borodyanskaya, Mariya; Grigsby, Jim; Doerflinger, Melanie; Hagerman, Paul, J.; Hagerman, Randi, J., 2008: Expanded clinical phenotype of women with the FMR1 premutation. Fragile X-associated tremor/ataxia syndrome (FXTAS) is generally considered to be uncommon in older female carriers of premutation alleles (55-200 CGG repeats) of the fragile X mental retardation 1 (FMR1) gene; however, neither prevalence, nor th...

Warnakulasuriya, Saman; Sutherland, Gay; Scully, Crispian, 2005: Tobacco, oral cancer, and treatment of dependence. Tobacco dependence is recognised as a life-threatening disorder with serious oral health consequences which responds to treatment in the form of behavioural support and medication. While cigarette smoking is the most hazardous and prevalent form o...