从水力结构的角度解释生长温度对烟草叶片形状和大小的影响

doi:10.7677/ynzwyj201514089

摘要/Abstract

摘要：

叶片形状和大小在不同的生长温度下变化非常大，但少有从水力结构的角度解释其变化原因的研究。本研究测定了生长于两个不同温度下 (24℃/18℃昼/夜; 32℃/26℃昼/夜) 的烟草叶片的解剖结构，导水率，叶片长宽比和叶面积。生长在24℃/18℃下的烟草叶片与生长在32℃/18℃的叶片相比，更狭窄，并有更小的叶柄导管直径，更低的叶脉密度和导水率。然而，在不同的生长温度下，烟草叶面积并没有显著差异。叶片导水率与叶脉密度呈正相关，但与叶片长宽比呈负相关。结果表明在不同的生长温度下叶片解剖结构和叶片导水率可能对于改变叶宽比起着重要作用。

关键词: 温度, 叶片解剖, 叶片导水率, 叶片形状, 叶片大小, 烟草

Abstract:

Although leaf shape and size are highly variable across different temperatures, few studies have investigated the reasons for their variations from the hydraulic perspective. We hypothesized that temperature will induce the modification of leaf waterrelated anatomy and leaf hydraulic conductance, which may play an important role in affec
ting leaf shape and size. Narrow and small leaf might be an adaptation to low water transport capacity under low temperature, making the whole leaf obtain water more uniformly. To test the above hypothesis, we investigated leaf anatomy, leaf hydraulic conductance, leaf shape and size of tobacco under two growth temperatures (24℃/18℃ day/night; 32℃/26℃ day/night) and analyzed the associations between leaf hydraulic architecture and leaf lengthtowidth ratio. We found that the tobacco leaves at 24℃ were significantly narrower, and had smaller petiole vessel diameter, lower minor vein density and hydraulic conductance compared with those at 32℃. However, there was no significant difference in leaf size between two temperatures. Leaf hydraulic conductance was positively correlated with minor vein density, but negatively with leaf lengthtowidth ratio. Our results suggested that the modification of leaf anatomy and leaf hydraulic conductance might play an important role in affecting leaf shape under different temperatures.

Key words: Leaf anatomy, Leaf hydraulic conductance, Leaf shape, Leaf size, Nicotiana tabacum Temperature

中图分类号:

胡静, 胡虹. 从水力结构的角度解释生长温度对烟草叶片形状和大小的影响[J]. Plant Diversity, 2015, 37(2): 168-176.

HU Jing, HU Hong. Viewing Leaf Shape and Size Variation in Tobacco Plants under Different Temperatures from a Hydraulic Perspective[J]. Plant Diversity, 2015, 37(2): 168-176.

参考文献

Aasamaa K, Niinemets , Sober ANU, 2005. Leaf hydraulic conductance in relation to anatomical and functional traits during Populus tremula leaf ontogeny［J］.Tree Physiology, 25: 1409—1418
Abrams MD, Kloeppel BD, Kubiske ME, 1992. Ecophysiological and morphological responses to shade and drought in two contrasting ecotypes of Prunus serotina［J］.Tree Physiology, 10: 343—355
Ashton PMS, Berlyn GP, 1994. A comparison of leaf physiology and anatomy of Quercus (Section ErythrobalanusFagaceae) species in different light environments［J］. American Journal of Botany, 81: 589—597
Ball MC, Cowan IR, Farquhar GD, 1988. Maintenance of leaf temperature and the optimization of carbon gain in relation to water loss in a tropical mangrove forest［J］. Australian Journal of Plant Physiology, 15: 263—276
Brodribb TJ, Feild TS, Jordan GJ, 2007. Leaf maximum photosynthetic rate and venation are linked by hydraulics［J］. Plant Physiology, 144: 1890—1898
Brodribb TJ, Feild TS, Sack L, 2010. Viewing leaf structure and evolution from a hydraulic perspective［J］. Functional Plant Biology, 37: 488—498
Cochard H, Nardini A, Coll L, 2004. Hydraulic architecture of leaf blades: where is the main resistance?［J］. Plant Cell & Environment, 27: 1257—1267
Coomes DA, Heathcote S, Godfrey ER et al., 2008. Scaling of xylem vessels and veins within the leaves of oak species［J］. Biology Letters, 4: 302—306
Givnish TJ, 1978. Ecological aspects of plant morphology: leaf form in relation to environment［J］. Acta Biotheoretica, 27: 83—142
Givnish TJ, 1979. On the adaptive significance of leaf form ［A］. // Solbrig OT, Subodh J, Johnson GB, Raven PH eds., Topics in Plant Population Biology［M］. New York: Columbia University Press, 375—407
Guerin GR, Wen HX, Lowe AJ, 2012. Leaf morphology shift linked to climate change［J］. Biology Letters. doi: 101098/rsbl20120458
Haroon M, Long RC, Weybrew JA, 1972. Effect of day/night temperature on factors associated with growth of Nicotiana tabacum L. in controlled environments［J］. Agronomy Journal, 64: 509—515
Hellemans J, Forrez P, Wilde RD, 1980. Experiment illustrating Bernoulli’s equation and HagenPoiseuille’s law［J］. American Journal Physiology, 48: 254—255
March RH, Clark LG, 2011. Sunshade variation in bamboo (Poaceae: Bambusoideae) leaves［J］. Telopea, 13: 93—104
Medek DE, Evans JR, Schortemeyer M et al., 2011. Effects of growth temperature on photosynthetic gas exchange characteristics and hydraulic anatomy in leaves of two coldclimate Poa species［J］. Functional Plant Biology, 38: 54—62
Mendes MM, Gazarini LC, Rodrigues ML, 2001. Acclimation of Myrtus communis to contrasting Mediterranean light environmentseffects on structure and chemical composition of foliage and plant water relations［J］. Environmental and Experimental Botany, 45: 165—178
Nicotra AB, Cosgrove MJ, Cowling A et al., 2008. Leaf shape linked to photosynthetic rates and temperature optima in South African Pelargonium species［J］. Oecologia, 154: 625—635
Nicotra AB, Leigh A, Boyce CK et al., 2011.The evolution and functional significance of leaf shape in the angiosperms［J］. Functional Plant Biology, 38: 535—552
Niinemets , Kull K, 1994. Leaf weight per area and leaf size of 85 Estonian woody species in relation to shade tolerance and light availability［J］.Forest Ecology and Management, 70: 1—10
Parkhurst DF, Loucks OL, 1972. Optimal leaf size in relation to environment［J］.Journal of Ecology, 60: 505—537
RothNebelsick A, Uhl D, Mosbrugger V et al., 2001. Evolution and function of leaf venation architecture: a review［J］. Annals of Botany, 87: 553—566
Royer DL, Wilf P, Janesko DA et al., 2005. Correlations of climate and plant ecology to leaf size and shape: Potential proxies for the fossil record［J］. American Journal of Botany, 92: 1141—1151
Royer DL, 2012. Leaf shape responds to temperature but not CO2 in Acer rubrum［J］. PLoS ONE,7: e49559. doi: 101371/journalpone0049559
Sack L, Melcher PJ, Zwieniecki MA et al., 2002. The hydraulic conductance of the angiosperm leaf lamina: a comparison of three measurement methods［J］. Journal of Experimental Botany, 53: 2177—2184
Sack L, Cowan PD, Jaikumar N et al., 2003. The ‘hydrology’ of leaves: coordination of structure and function in temperate woody species［J］. Plant Cell & Environment, 26: 1343—1356
Sack L, Streeter CM, Holbrook NM, 2004. Hydraulic analysis of water flow through leaves of sugar maple and red oak［J］. Plant Physiology, 134: 1824—1833
Sack L, Frole K, 2006. Leaf structural diversity is related to hydraulic capacity in tropical rain forest trees［J］. Ecology, 87: 483—491
Sack L, Holbrook NM, 2006. Leaf hydraulics［J］. Annual Review of Plant Biology, 57: 361—381
Scoffoni C, Rawls M, McKown A et al., 2011. Decline of leaf hydraulic conductance with dehydration: relationship to leaf size and venation architecture［J］. Plant Physiology, 156: 832—843
Sisó S, Camarero JJ, GilPelegrin E, 2001. Relationship between hydraulic resistance and leaf morphology in broadleaf Quercus species: a new interpretation of leaf lobation［J］. Trees, 15: 341—345
Takenaka A, 1994. Effects of leaf blade narrowness and petiole length on the light capture efficiency of a shoot［J］.Ecological Research, 9: 109—114
Tyree MT, Nardini A, Salleo S et al., 2005. The dependence of leaf hydraulic conductance on irradiance during HPFM measurements: any role for stomatal response?［J］. Journal of Experimental Botany, 56: 737—744
Way DA, Domec JC, Jackson RB, 2012. Elevated growth temperatures alter hydraulic characteristics in trembling aspen (Populus tremuloides) seedlings: implications for tree drought tolerance［J］. Plant Cell & Environment, 36: 103—115
Xu F, Guo WH, Xu WH et al., 2009. Leaf morphology correlates with water and light availability: what consequences for simple and compound leaves?［J］. Progress in Natural Science, 19: 1789—1798
Yano S, Terashima I, 2004. Developmental process in sun and shade leaves of Chenopodium album L.［J］. Plant Cell & Environment, 27: 781—793
Zhu YH, Kang HZ, Xie Q et al., 2012. Pattern of leaf vein density and climate relationship of Quercus variabilis populations remains unchanged with environmental changes［J］. Trees, 26: 597—607
Zwieniecki MA, Melcher PJ, Boyce CK et al., 2002. Hydraulic architecture of leaf venation in Laurus nobilis L. ［J］.Plant Cell & Environment, 25: 1445—1450
Zwieniecki MA, Boyce CK, Holbrook NM, 2004a. Functional design space of singleveined leaves: role of tissue hydraulic properties in constraining leaf size and shape［J］. Annals of Botany, 94: 507—513
Zwieniecki MA, Boyce CK, Holbrook NM, 2004b. Hydraulic limitations imposed by crown placement determine final size and shape of Quercus rubra L. Leaves［J］. Plant Cell & Environment, 27: 357—365

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