EurekaMag.com logo
+ Site Statistics
References:
48,252,460
Abstracts:
22,798,453
+ 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

Herbivore-induced changes in plant carbon allocation: Assessment of below-ground C fluxes using carbon-14


, : Herbivore-induced changes in plant carbon allocation: Assessment of below-ground C fluxes using carbon-14. Oecologia (Berlin) 107(1): 87-94

Effects of above-ground herbivory on short-term plant carbon allocation were studied using maize (Zea mays) and a generalist lubber grasshopper (Romalea guttata). We hypothesized that above-ground herbivory stimulates current net carbon assimilate allocation to below-ground components, such as roots, root exudation and root and soil respiration. Maize plants 24 days old were grazed (c. 25-50% leaf area removed) by caging grasshoppers around individual plants and 18 h later pulse-labelled with 14CO-2. During the next 8 h, 14C assimilates were traced to shoots, roots, root plus soil respiration, root exudates, rhizosphere soil, and bulk soil using carbon-14 techniques. Significant positive relationships were observed between herbivory and carbon allocated to roots, root exudates, and root and soil respiration, and a significant negative relationship between herbivory and carbon allocated to shoots. No relationship was observed between herbivory and 14C recovered from soil. While herbivory increased root and soil respiration, the peak time for 14CO-2 evolved as respiration was not altered, thereby suggesting that herbivory only increases the magnitude of respiration, not patterns of translocation through time. Although there was a trend for lower photosynthetic rates of grazed plants than photosynthetic rates of ungrazed plants, no significant differences were observed among grazed and ungrazed plants. We conclude that above-ground herbivory can increase plant carbon fluxes below ground (roots, root exudates, and rhizosphere respiration), thus increasing resources (e.g., root exudates) available to soil organisms, especially microbial populations.

(PDF same-day service: $19.90)

Order PDF Full Text

Close
Close

Click here to order any other PDF Full Text


Accession: 008766902

DOI: 10.1007/bf00582238

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:
Close
Close

Other references

Navin, M.J.; Angevine, J.M., 1968: Congenital cytomegalic inclusion disease with porencephaly. Neurology 18(5): 470-472

Guesry, P.; Lenoir, G.; Broyer, M., 1978: Gonadal effects of chlorambucil given to prepubertal and pubertal boys for nephrotic syndrome. To assess the gonadal effects of chlorambucil given to prepubertal and pubertal boys, testicular function of 21 adolescents or young men, treated with chlorambucil for nephrotic syndrome before or during puberty, have been evaluated. Evaluations h...

Beaton G.; Weste G., 1983: The genus mesophellia in victoria australia. Mesophellia is represented in Victoria, Australia, by 4 spp. [M. glauca, M. pachythrix, M. novae-zelandiae and M. agglutinospora sp. nov.]. Illustrated descriptions and a key are provided to the 4 spp. Stages in gasterocarp development and basidio...

Afonin S. V., 1990: The influence of mine water pumping on ground water resources in the Kuznetsk Basin according to modeling data. Trudy - Vsesoyuznyy Nauchno-Issledovatel'skiy Institut Gidrogeologii i Inzhenernoy Geologii 150: 36-40

Anonymous, 2008: Overshadowing difficulties. Geoengineering is a seductive idea. Maybe too seductive. Scientific American 299(5): 38-38

Hautmann, R.; Lutzeyer, W., 1973: False diagnosis of bladder carcinoma. Der Urologe. Ausg. A 12(2): 61-65

Fernando, T., 1989: Direct fired dryer for foods and by-products. Food Australia official journal of CAFTA and AIFST 41(12): 1072

Chung, S.T.k; Kim, D.J.ong; Kim, H.D.rk; Rah, B.J.n, 1992: Partial purification of myosin from rabbit myocardium by gel filtration. Myosin, the major protein required for the production of force and shortening in muscle, is a hexamer consisting two heavy chains (molecular mass apprx 200kDa) and pairs of light chains (molecular mass apprx 16 and 20kDa). Myosin and other contrac...

Lynch, D. R.; Nelson, G. A.; Kulcsar, F., 1989: Elimination of bacterial ring rot (Corynebacterium sepedonicum Skapt. and Burkh.) by in vitro culture of sprout tissue. Apical explants of sprout tissue from Russett Burbank potato tubers infected by C. sepedonicum [Clavibacter michiganensis subsp. sepedonicus] were used for in vitro cultures. The tissue was shown to be free of pathogen for 3 successive in vitro ge...

Doyle, L.; Budd, G.; Wilks, S., 1988: Lardaceous disease: some early reports by British authors (1722-1879). Journal of the Royal Society of Medicine 81(12): 729-731