Australian Journal of Botany Australian Journal of Botany Society
Southern hemisphere botanical ecosystems
RESEARCH ARTICLE

Global warming induces female cuttings of Populus cathayana to allocate more biomass, C and N to aboveground organs than do male cuttings

Xiao Xu A D , Guoquan Peng B , Chengchun Wu B and Qingmin Han C
+ Author Affiliations
- Author Affiliations

A Key Laboratory of Southwest China Wildlife Resources Conservation, China West Normal University, Nanchong 637002, China.

B Chengdu Institute of Biology, Chinese Academy of Sciences, PO Box 416, Chengdu 610041, China.

C Plant Production Laboratory, Department of Plant Ecology, Forestry and Forest Products Research Institute, Tsukuba, Ibaraki 305-8687, Japan.

D Corresponding author. Email: xuxiao@cib.ac.cn

Australian Journal of Botany 58(7) 519-526 https://doi.org/10.1071/BT10108
Submitted: 6 May 2010  Accepted: 22 July 2010   Published: 27 October 2010

Abstract

We investigated differences between the sexes of a dioecious species, Populus cathayana Rehd, in biomass accumulation, biomass allocation, and carbon (C) and nitrogen (N) concentrations under elevated temperature treatments. Cuttings were subjected to three temperature regimes (control, +2°C and +4°C, respectively) in closed-top chambers. Compared with the control treatment, warming significantly increased the net photosynthesis rate, height growth, leaf dry mass, stem dry mass (SM), root dry mass (RM) and total dry mass (TM), and resulted in a higher aboveground : belowground dry mass ratio (AB) in all individuals of both sexes, except in males under the +2°C warming treatment. Furthermore, warming decreased the concentration of C in the stems in both sexes, and increased the concentration of N in the leaves of females, and consequently, resulted in a lower C : N ratio in the leaves of female cuttings than in those of male cuttings. Also, further differences between males and females were detected. In the warming treatments, females exhibited significantly higher values of SM, RM, TM and AB, and lower RM : TM and RM : foliage area ratios than did the males. However, no significant differences in these traits between the two sexes were detected under ambient temperature. Our results indicated that allocation of biomass, and the concentrations of C and N in males and females are greatly affected by an elevated temperature, and that warming benefits females, which accumulate and allocate more biomass to aboveground organs than do the males.


Acknowledgements

The research was supported by the National Natural Science Foundation of China (No. 30771721, 30930075), the Program of ‘Knowledge Innovation Engineering’ of the Chinese Academy of Sciences (No. KSCX2-YW-N-064).


References


Agren J (1988) Sexual differences in biomass and nutrient allocation in the dioecious Rubus chamaemorus. Ecology 69, 962–973.
CrossRef |

Allen GA, Antos JA (1988) Relative reproductive effort in males and females of the dioecious shrub Oemleria cerasiformis. Oecologia 76, 111–118.

An Y, Wan S, Zhou X, Subedar AA, Wallace LL, Luo Y (2005) Plant nitrogen concentration, use efficiency, and contents in a tallgrass prairie ecosystem under experimental warming. Global Change Biology 11, 1733–1744.
CrossRef |

Callaway RM, Delucia EH, Thomas EM, Schlesinger WH (1994) Compensatory responses of CO2 exchange and biomass allocation and their effects on the relative growth rate of ponderosa pine in different CO2 and temperature regimes. Oecologia 98, 159–166.
CrossRef |

Chen DX, Coughenour MB, Eberts D, Thullen JS (1994) Interactive effects of CO2 enrichment and temperature on the growth of dioecious Hydrilla verticillata. Environmental and Experimental Botany 34, 345–353.
CrossRef |

Darwin C (1877) ‘The different forms of flowers on plants of the same species.’ (John Murray: London)

Davidson RL (1969) Effect of root/leaf temperature differentials on root/shoot ratios in some pasture grasses and clover. Annals of Botany 33, 561–569.

Dawson TE, Bliss LC (1989) Patterns of water use and the tissue water relations in the dioecious shrub, Salix arctica: the physiological basis for habitat partitioning between the sexes. Oecologia 79, 332–343.
CrossRef |

Dawson TE, Ehleringer JR (1993) Gender-specific physiology, carbon isotope discrimination, and habitat distribution in boxelder, Acer negundo. Ecology 74, 798–815.
CrossRef |

Delph LF (1990) Sex-differential resource allocation patterns in the subdioecious shrub Hebe subalpina. Ecology 71, 1342–1351.
CrossRef |

Delucia EH, Heckathorn SA, Day TA (1992) Effects of soil temperature on growth, biomass allocation and resource acquisition of Andropogon gerardii Vitman. New Phytologist 120, 543–549.
CrossRef |

Domisch T, Finér L, Lehto T (2001) Effects of soil temperature on biomass and carbohydrate allocation in Scots pine (Pinus sylvestris) seedlings at the beginning of the growing season. Tree Physiology 21, 465–472.
CAS | PubMed |


Freeman DC, Klikoff LG, Harper KT (1976) Differental resource utilization by sexes of dioecious plants. Science 193, 597–599.
CrossRef | CAS | PubMed |

Gedroc JJ, McConnaghay KDM, Coleman JS (1996) Plasticity in root/shoot partitioning: optimal, ontogenetic, or both? Functional Ecology 10, 44–50.
CrossRef |

Hawkins BJ, Kiiskila SBR, Henry G (1999) Biomass and nutrient allocation in Douglas-fir and amabilis fir seedlings: influence of growth rate and temperature. Tree Physiology 19, 59–63.
PubMed |


Hemborg ÅM, Karlsson PS (1999) Sexual differences in biomass and nutrient allocation of first-year Silene dioica plants. Oecologia 118, 453–460.
CrossRef |

Hobbie EA, Olszyk DM, Rygiewicz PT, Tingey DT, Johnson MG (2001) Foliar nitrogen concentrations and natural abundance of 15N suggest nitrogen allocation patterns of Douglas-fir and mycorrhizal fungi during development in elevated carbon dioxide concentration and temperature. Tree Physiology 21, 1113–1122.
CAS | PubMed |


Holopainen JK, Kainulainen P (2004) Reproductive capacity of the grey pine aphid and allocation response of Scots pine seedlings across temperature gradients: a test of hypotheses predicting outcomes of global warming. Canadian Journal of Forest Research 34, 94–102.
CrossRef |

Hultine KR, Bush SE, West AG, Ehleringer JR (2007) Population structure, physiology and ecohydrological impacts of dioecious riparian tree species of western North America. Oecologia 154, 85–93.
CrossRef | CAS | PubMed |

IPCC (2007) Climate Change 2007: the physical science basis. Contribution of Working Group I. In ‘The 4th assessment report of the Intergovernmental Panel on Climate Change’. (Eds S Solomon, D Qin, M Manning, Z Chen, M Marquis, KB Averyt, M Tignor, HL Miller) p. 996. (Cambridge University Press: Cambridge, UK)

Kellomäki S, Wang KY (1997) Effects of long-term CO2 and temperature elevation on crown nitrogen distribution and daily photosynthetic performance of Scots pine. Forest Ecology and Management 99, 309–326.
CrossRef |

King JS, Pregitzer KS, Zak DR (1999) Clonal variation in above- and below-ground growth responses of Populus tremuloides Michaux: influence of soil warming and nutrient availability. Plant and Soil 217, 119–130.
CrossRef |

Korpelainen H (1992) Patterns of resource allocation in male and female plants of Rumex acetosa and R. acetosella. Oecologia 89, 133–139.
CrossRef |

Landhäusser SM, Wein RW, Lange P (1996) Gas exchange and growth of three arctic tree-line tree species under different soil temperature and drought preconditioning regimes. Canadian Journal of Botany 74, 686–693.
CrossRef |

Li C, Xu G, Zang R, Korpelainen H, Berninger F (2007) Sex-related differences in leaf morphological and physiological responses in Hippophae rhamnoides along an altitudinal gradient. Tree Physiology 27, 399–406.
CAS | PubMed |


Lin G, Ehleringer JR, Rygiewicz PT, Johnson MG, Tingey DT (1999) Elevated CO2 and temperature impacts on different components of soil CO2 efflux in Douglas-fir terracosms. Global Change Biology 5, 157–168.
CrossRef |

Linderholm HW (2006) Growing season changes in the last century. Agricultural and Forest Meteorology 137, 1–14.
CrossRef |

Link SO, Smith JL, Halvorson JJ, Bolton H (2003) A reciprocal transplant experiment within a climatic gradient in a semiarid shrub-steppe ecosystem: effects on bunchgrass growth and reproduction, soil carbon, and soil nitrogen. Global Change Biology 9, 1097–1105.
CrossRef |

Marcelis LFM (1994) Effect of fruit-growth, temperatrue and irradiance on biomass allocation to the vegetative parts of cucumber. Netherlands Journal of Agricultural Science 42, 115–123.

Matsumoto K, Ohta T, Irasawa M, Nakamura T (2003) Climate change and extension of the Ginkgo biloba L. growing season in Japan. Global Change Biology 9, 1634–1642.
CrossRef |

McDowell SCL, McDowell NG, Marshall JD, Hultine K (2000) Carbon and nitrogen allocation to male and female reproduction in Rocky Mountain Douglas-fir (Pseudotsuga menziesii var. glauca, Pinaceae). American Journal of Botany 87, 539–546.
CrossRef | PubMed |

Olszyk DM, Johnson MG, Tingey DT, Rygiewicz PT, Wise C, VenEss E, Benson A, Storm MJ, King R (2003) Whole-seedling biomass allocation, leaf area, and tissue chemistry for Douglas-fir exposed to elevated CO2 and temperature for 4 years. Canadian Journal of Forestry Research 33, 269–278.
CAS | CrossRef |


Peng YY, Dang QL (2003) Effects of soil temperature on biomass production and allocation in seedlings of four boreal tree species. Forest Ecology and Management 180, 1–9.
CrossRef |

Penuelas J, Boada M (2003) A global change-induced biome shift in the Montseny mountains (NE Spain). Global Change Biology 9, 131–140.
CrossRef |

Pickering CM, Arthur JM (2003) Patterns of resource allocation in the dioecious alpine herb Aciphylla simplicifolia (Apiaceae). Austral Ecology 28, 566–574.
CrossRef |

Renner SS, Ricklefs RE (1995) Dioecy and its correlates in the flowering plants. American Journal of Botany 82, 596–606.
CrossRef |

Sardans J, Peńuelas J, Estiarte M, Prieto P (2008) Warming and drought alter C and N concentration, allocation and accumulation in a Mediterranean shrubland. Global Change Biology 14, 2304–2316.
CrossRef |

Soussana JF, Casella E, Loiseau P (1996) Long term effects of CO2 enrichment and temperature increase on a temperate grassland sward. II. Plant nitrogen budgets and root fraction. Plant and Soil 182, 110–114.
CrossRef |


Stoneman GL, Dell B (1993) Growth of Eucalyptus marginata (jarrah) seedlings in a greenhouse in response to shade and soil temperature. Tree Physiology 13, 239–252.
PubMed |


Tingey DT, Mckane RB, Olszyk DM, Johnson MG, Rygiewicz PT, Lee EH (2003) Elevated CO2 and temperature alter nitrogen allocation in Douglas-fir. Global Change Biology 9, 1038–1050.
CrossRef |

Wallace CS, Rundel PW (1979) Sexual dimorphism and resource allocation in male and female shrubs of Simmondsia chinensis. Oecologia 44, 34–39.
CrossRef |

Wang X (2007) Gender-specific flowering responses to day length in the dioecious plant Silene latifolia at different temperatures. Sexual Plant Reproduction 20, 45–50.
CrossRef | CAS |

Wang X, Curtis PS (2001) Gender-specific response of Populus tremuloides to atmospheric CO2 enrichment. New Phytologist 150, 675–684.
CrossRef | CAS |

Weih M, Karlsson PS (2001) Growth response of Mountain birch to air and soil temperature: is increasing leaf-nitrogen content an acclimation to lower air temperature. New Phytologist 150, 147–155.
CrossRef |

Wilson JB (1988) A review of evidence on the control of shoot: root ratio, in relation to models. Annals of Botany 61, 433–449.

Xu X, Yang F, Xiao X, Zhang S, Korpelainen H, Li C (2008a) Sex-specific responses of Populus cathayana to drought and elevated temperatures. Plant, Cell & Environment 31, 850–860.
CrossRef | CAS | PubMed |

Xu X, Peng G, Wu C, Korpelainen H, Li C (2008b) Drought inhibits photosynthetic capacity more in females than in males of Populus cathayana. Tree Physiology 28, 1751–1759.
PubMed |








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