PL EN


Preferencje help
Widoczny [Schowaj] Abstrakt
Liczba wyników
2010 | 32 | 6 |

Tytuł artykułu

The use of network analysis to uncover homeostatic responses of a drought-tolerant sugarcane cultivar under severe water deficit and phosphorus supply

Warianty tytułu

Języki publikacji

EN

Abstrakty

EN
The objective of this study was to identify how changes in the photosynthetic network would be linked to the homeostasis modulation of a drought tolerant sugarcane cultivar subjected to severe water deficit. Moreover, we tested the potential effect of phosphorus supply on the plant physiological responses to drought, because such element is essential to photosynthetic processes. This study was carried out in a greenhouse, where sugarcane plants (Saccharum spp.) cv. RB 86-7515 were grown. One singlenode stalk segment was planted in plastic pots (20 L) filled with soil (red-yellow ultisol). Soil fertilization was performed according to the chemical analysis, except for the phosphorus (P) supply. Plants were subjected to the original P concentration in soil (36 mg dm⁻³ ) or supplied with 50 mg P2O₅ dm⁻³ using CaH₄(PO₄)₂. Plants were irrigated daily until the beginning of drought treatment. After 90 days of shoot emergence, the water deficit was started at the phenological phase II (tillering). Plants were irrigated with the equivalent to 100% (control) or 10% (water deficit) of daily water requirement based on the evapotranspiration. Light response curves of leaf gas exchange and other physiological and growth variables were performed in each treatment. Data were subjected to analysis of variance and the mean values were compared by Tukey’s test (p<0.05). To assess changes in system network, we evaluated the occurrence of photosynthetic system modulation under distinct water regimes and phosphorus supplying via the concept and measurement of global connectance, Cg. Set of results from coefficient of variation (CV) and Cg analyses indicated adjustments in the relationships among the elements of the leaf gas exchange network that support the high drought tolerance of the sugarcane cultivar RB 86-7515 and such adjustments enabled the homeostasis of both photosynthesis and plant growth under water deficit. Moreover, P supply improved the sugarcane acclimation capacity by affecting plant characteristics related to water status and photosynthetic performance and causing network modulation under water deficit.

Słowa kluczowe

Wydawca

-

Rocznik

Tom

32

Numer

6

Opis fizyczny

p.1145-1151,fig.,ref.

Twórcy

autor
  • Laborato´rio de Ecofisiologia Vegetal, Universidade do Oeste Paulista, Rod. Raposo Tavares km 572, 19067-175 Presidente Prudente, SP, Brazil
  • Laborato´rio de Ecofisiologia Vegetal, Universidade do Oeste Paulista, Rod. Raposo Tavares km 572, 19067-175 Presidente Prudente, SP, Brazil
  • Centro de Pesquisa e Desenvolvimento de Ecofisiologia e Biofı´sica, Instituto Agronoˆmico, P.O. Box 28, 13012-970 Campinas, SP, Brazil
autor
  • Laborato´rio de Ecofisiologia Vegetal, Universidade do Oeste Paulista, Rod. Raposo Tavares km 572, 19067-175 Presidente Prudente, SP, Brazil

Bibliografia

  • Albert R, Jeong H, Barabasi A-L (2000) Error and attack tolerance of complex networks. Nature 406:378–381
  • Al-Karaki GN, Clark RB, Sullivan CY (1996) Phosphorus nutrition and water effects on proline accumulation in sorghum and bean. J Plant Physiol 148:745–751
  • Amzallag GN (2001a) Data analysis in plant physiology: are we missing the reality? Plant Cell Environ 24:881–890
  • Amzallag GN (2001b) Maturation of integrated functions during development I. Modifications of the regulatory network during transition periods in Sorghum bicolor. Plant Cell Environ 24:337–345
  • Camargo-Bortolin LHG, Prado CHBA, Souza GM, Novaes P (2008) Autonomy and network modulation of photosynthesis and water relations of Coffea arabica in the field. Braz J Plant Physiol 20:141–151
  • Carli P, Arima S, Fogliano, Tardella L, Frusciante L, Ercolano MR (2009) Use of network analysis to capture key traits affecting tomato organoleptic quality. J Exp Bot 60:3379–3386
  • Chaves MM (1991) Effects of water deficit on carbon assimilation. J Exp Bot 42:1–16
  • Csermely P (2006) Weak links: stabilizers of complex systems from proteins to social networks. Springer, Berlin
  • Doorenbos J, Kassan AH (1979) Yield response to water. FAO, Rome Edelman GM, Gally JA (2001) Degeneracy and complexity in biological systems. PNAS USA 98:13763–13768
  • Flexas J, Bota J, Galmês J, Medrano H, Ribas-Carbó M (2006) Keeping a positive carbon balance under adverse conditions: responses of photosynthesis and respiration to water stress. Physiol Plant 127:343–352
  • Gardner MR, Ashby WR (1970) Connectance of large dynamic (cybernetic) systems: critical values for stability. Nature 228:784
  • Garg BK, Burman U, Kathju S (2004) The influence of phosphorus nutrition on the physiological response of moth bean genotypes to drought. J Plant Nutr Soil Sci 167:503–508
  • Guimarães ER, Mutton MA, Mutton MJR, Ferro MIT, Ravaneli GC, Silva JA (2008) Free proline accumulation in sugarcane under water restriction and spittlebug infestation. Sci Agric 65:628–633
  • Hendrickson L, Crow WS, Furbank RL (2004) Low temperature effects on grapevine photosynthesis: the role of inorganic phosphate. Funct Plant Biol 31:789–801
  • Heuer B (1994) Osmoregulatory role of proline in water and salt stress plants. In: Pessarakli M (ed) Handbook of plant and crop stress. Marcel Dekker, New York
  • Junker BH, Schreiber F (2008) Analysis of biological network. Wiley, Hoboke
  • Kaiser WM (1987) Effect of water deficit on photosynthetic capacity. Physiol Plant 71:142–149
  • Kumar A, Singh DP (1998) Use of physiological indices as a screening technique for drought to tolerance in oilseed Brassica species. Ann Bot 81:413–420
  • Kuwahara FA, Souza GM (2009) Fósforo como possível mitigador dos efeitos da deficiência hídrica sobre o crescimento e as trocas gasosas de Brachiaria brizantha cv. MG-5 Vitória. Acta Scient Agron 31:261–267
  • Larcher W (2004) Ecofisiologia Vegetal. Rima Editora, São Carlos Lawlor DW (2002) Carbon and nitrogen assimilation in relation to yield: mechanisms are the key to understanding production systems. J Exp Bot 53:773–787
  • Lawlor DW, Cornic G (2002) Photosynthetic carbon assimilation and associated metabolism in relation to water deficits in higher plants. Plant Cell Environ 25:275–294
  • Leegood RC, Furbank RT (1986) Simulation of photosynthesis by 2% oxygen at low temperatures is restored by phosphate. Planta 168:84–93
  • Malavolta E, Vitti GC, Oliveira SA (1997) Avaliação do estado nutricional das plantas: princípios e aplicações. Potafos, Piracicaba
  • Nilsen ET, Orcutt DM (1996) Physiology of plants under stress. Wiley, New York
  • Parry MAJ, Andralojc PJ, Khan S, Lea PJ, Keys AJ (2002) Rubisco activity: effects of drought stress. Ann Bot 89:833–839
  • Passioura JB (1994) The yield of crops in relation to drought. In: Boote KJ, Bennett JM, Sinclair TR, Paulsen GM (eds) Physiology and determination of crop yield. USA American Society of Agronomy, Medison, pp 343–359
  • Prado CHBA, Moraes JAPV (1997) Photosynthetic capacity and specific leaf mass in twenty woody species of cerrado vegetation under field conditions. Photosynthetica 33:103–112
  • Prado CHBA, Wenhui Z, Rojas MHC, Souza GM (2004) Seasonal leaf gas exchange ande water potencial in a cerrado woody species community. Braz J Plant Physiol 16:7–16
  • Santos MG, Ribeiro RV, Oliveira RF, Pimentel C (2004) Gas exchange and yield response to foliar phosphorus supplying in Phaseolus vulgaris under drought. Braz J Plant Physiol 16:171–179
  • Santos MG, Ribeiro RV, Oliveira RF, Machado EC, Pimentel C (2006) The role of inorganic phosphate on photosynthesis recovery of common bean after a mild water deficit. Plant Sci 170:659–664
  • Schultz SG (1996) Homeostasis, humpty dumpty, and integrative biology. News Physiol Sci 11:238–246
  • Silva MA, Silva JAG, Enciso J, Sharma V, Jifon J (2008) Yield components as indicators of drought tolerance of sugarcane. Sci Agric 65:620–627
  • Souza GM, Aidar ST, Oliveira RF (2004) Developmental stability and network connectance in Phaseolus vulgaris L. genotypes under water deficit. Isr J Plant Sci 52:205–212
  • Souza GM, Pincus SM, Monteiro JAF (2005) The complexitystability hypothesis in plant gas exchange under water deficit. Braz J Plant Physiol 17:363–373
  • Souza GM, Ribeiro RV, Prado CHBA, Damineli DSC, Sato AM, Oliveira MS (2009) Using network connectance and autonomy analyses to uncover patterns of photosynthetic responses in tropical woody species. Ecol Complex 6:15–26
  • Trewavas A (1986) Understanding the control of plant development and the role of growth substances. Aust J Plant Physiol 13:447–457
  • Vilela H, Melo A (1992) Silagem de cana-de-açúcar. Fazendeiro, São Paulo (http:// www.clubedofazendeiro.com.br/Cietec/Artigos/ArtigosTexto.asp?Codigo=2182.)

Typ dokumentu

Bibliografia

Identyfikatory

Identyfikator YADDA

bwmeta1.element.agro-75b278a1-5dd2-4808-9d9e-11c413ad4b52
JavaScript jest wyłączony w Twojej przeglądarce internetowej. Włącz go, a następnie odśwież stronę, aby móc w pełni z niej korzystać.