Skip Navigation

This Article
Right arrow Full Text (PDF)
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Alert me to new issues of the journal
Right arrow Add to My Personal Archive
Right arrow Download to citation manager
Right arrowRequest Permissions
Google Scholar
Right arrow Articles by Pyankov, V. I.
Right arrow Articles by Edwards, G. E.
Right arrow Search for Related Content
PubMed
Right arrow Articles by Pyankov, V. I.
Right arrow Articles by Edwards, G. E.
Agricola
Right arrow Articles by Pyankov, V. I.
Right arrow Articles by Edwards, G. E.
Social Bookmarking
Add to CiteULike   Add to Connotea   Add to Del.icio.us  
What's this?

Plant and Cell Physiology, 1999, Vol. 40, No. 2 125-134
© 1999

Features of Photosynthesis in Haloxylon species of Chenopodiaceae that are Dominant Plants in Central Asian Deserts

Vladimir I. Pyankov1, Clanton C. Black, Jr.2, Elena G. Artyusheva1, Elena V. Voznesenskaya3, Maurice S.B. Ku4 and Gerald E. Edwards4

1 Department of Plant Physiology, Urals State University Lenin Avenue 51, 620083 Ekaterinburg, Russia
2 Department of Biochemistry and Molecular Biology, University of Georgia Athens, GA 30602, U.S.A.
3 Morphology and Anatomy Department, Komarov Botanical Institute RAS Prof. Popov Street 2, 197376 St. Petersburg, Russia
4 Botany Department, Washington State University Pullman, WA 99164-4238, U.S.A.

Haloxylon aphyllum and H. persicum of Chenopodiaceae are dominant plants in the continental deserts of the Asian Irano-Turanian region. The photosynthetic organs, assimilating shoots and leaf-like cotyledons of these two species were studied to characterize their photosynthetic types. 13C/12C isotope ratios, the cellular anatomy of as similating organs, primary photosynthetic products, and activities of carbon metabolism enzymes, RUBP carboxylase, PEP carboxylase, malic enzymes, and aspartate aminotransferase, indicate different pathways of CO2 fixation in the photosynthetic organs. Assimilating shoots had attributes of the C4 photosynthesis entirely, while cotyledons lack Kranz-anatomy and incorporated CO2 via C3 photosynthesis. Cotyledons and seeds had lower {delta}13C values compared to shoots, consistent with the contribution of C3-like CO2 assimilation. Two pathways of carbon donation to the C3 cycle via decarboxylation of C4 acids in bundle sheath cells are suggested to occur in shoots of Haloxylon. The primary photosynthetic product malate can be utilized through NADP+-malic enzyme which occurs in high activity. NAD{delta}-malic enzyme may contribute to C4 photosynthesis (some aspartate is formed as an initial product, the bundle sheath chloroplasts have some grana, and NAD+-malic enzyme is found in bundle sheath cells of shoots, all criteria for NAD+-malic enzyme type photosynthesis). We propose that organ diversity of CO2 fixation pathway in Haloxylon species is an important factor for their growth, survival and reproduction in continental climate deserts.

(Received May 6, 1998; Accepted November 11, 1998)
Add to CiteULike CiteULike   Add to Connotea Connotea   Add to Del.icio.us Del.icio.us    What's this?


This article has been cited by other articles:


Home page
 ANN BOT (LOND)Home page
T.-T. Meng, J. Ni, and S. P. Harrison
Plant morphometric traits and climate gradients in northern China: a meta-analysis using quadrat and flora data
Ann. Bot., November 1, 2009; 104(6): 1217 - 1229.
[Abstract] [Full Text] [PDF]

Home page
 Am. J. Bot.Home page
R. Muhaidat, R. F. Sage, and N. G. Dengler
Diversity of Kranz anatomy and biochemistry in C4 eudicots
Am. J. Botany, March 1, 2007; 94(3): 362 - 381.
[Abstract] [Full Text] [PDF]

Home page
 ANN BOT (LOND)Home page
Y. SHENG, W. ZHENG, K. PEI, and K. MA
Genetic Variation Within and Among Populations of a Dominant Desert Tree Haloxylon ammodendron (Amaranthaceae) in China
Ann. Bot., August 1, 2005; 96(2): 245 - 252.
[Abstract] [Full Text] [PDF]

Home page
 ANN BOT (LOND)Home page
E. V. VOZNESENSKAYA, V. R. FRANCESCHI, and G. E. EDWARDS
Light-dependent Development of Single Cell C4 Photosynthesis in Cotyledons of Borszczowia aralocaspica (Chenopodiaceae) during Transformation from a Storage to a Photosynthetic Organ
Ann. Bot., February 1, 2004; 93(2): 177 - 187.
[Abstract] [Full Text] [PDF]

Home page
 Plant Physiol.Home page
P. V. Minorsky

Plant Physiology, February 1, 2002; 128(2): 334 - 335.
[Full Text] [PDF]

Home page
 Am. J. Bot.Home page
V. I. Pyankov, E. G. Artyusheva, G. E. Edwards, C. C. Black Jr., and P. S. Soltis
Phylogenetic analysis of tribe Salsoleae (Chenopodiaceae) based on ribosomal ITS sequences: implications for the evolution of photosynthesis types
Am. J. Botany, July 1, 2001; 88(7): 1189 - 1198.
[Abstract] [Full Text] [PDF]

Home page
 J Exp BotHome page
G. E. Edwards, V. R. Franceschi, M. S. B. Ku, E. V. Voznesenskaya, V. I. Pyankov, and C. S. Andreo
Compartmentation of photosynthesis in cells and tissues of C4 plants
J. Exp. Bot., April 1, 2001; 52(356): 577 - 590.
[Abstract] [Full Text] [PDF]

Home page
 Plant Physiol.Home page
G. Shu, V. Pontieri, N. G. Dengler, and L. J. Mets
Light Induction of Cell Type Differentiation and Cell-Type-Specific Gene Expression in Cotyledons of a C4 Plant, Flaveria trinervia
Plant Physiology, November 1, 1999; 121(3): 731 - 741.
[Abstract] [Full Text]


Disclaimer: Please note that abstracts for content published before 1996 were created through digital scanning and may therefore not exactly replicate the text of the original print issues. All efforts have been made to ensure accuracy, but the Publisher will not be held responsible for any remaining inaccuracies. If you require any further clarification, please contact our Customer Services Department.