STOMATAL RESPONSE TO LIGHT OF SOLANUM-PENNELLII, LYCOPERSICON-ESCULENTUM, AND A GRAFT-INDUCED CHIMERA
STOMATAL RESPONSE TO LIGHT OF SOLANUM-PENNELLII, LYCOPERSICON-ESCULENTUM, AND A GRAFT-INDUCED CHIMERA
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DOI：
10.1104/pp.62.3.387
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发表时间：
1978-01-01
期刊：
影响因子：
7.4
通讯作者：
ANAGNOSTAKIS, SL
中科院分区：
文献类型：
--
作者：
HEICHEL, GH;ANAGNOSTAKIS, SL
为了了解气孔行为的物种差异是如何调节的，研究了L.番茄，和具有S. pennellii表皮和L.番茄叶肉是从2种植物的嫁接产生的。S. pennellii比L. esculentum和2 spp.气孔对光的敏感性形成鲜明对比。L. esculentum打开在昏暗的光和在更大程度上比正面气孔。S. pennellii对入射在近轴表皮上的光的反应类似，并且在所有量子通量密度下比L.蔬菜嵌合体的远、近轴气孔对光的反应模式与L. esculentum，与S. pennellii。因此，嵌合体的气孔光响应模式受L。番茄叶肉嵌合体气孔频率的降低受S. pennellii），在中等光照条件下，造成了植株间叶片扩散阻力的40%差异。
To learn how species differences in stomatal behavior are regulated, the response of epidermal and leaf diffusive resistance to light was investigated in L. esculentum Mill., Solanum pennellii Corr. and a periclinal chimera having an S. pennellii epidermis and an L. esculentum mesophyll that was produced from a graft of the 2 spp. S. pennellii has about 23% fewer stomata per mm2 than does L. esculentum, and the 2 spp. have contrasting stomatal sensitivities to light. The abaxial stomata of L. esculentum open in dimmer light and to a greater extent than the adaxial stomata. The abaxial and adaxial stomata of S. pennellii respond similarly to light incident on the adaxial epidermis and are less open at all quantum flux densities than comparable stomata of L. esculentum. The patterns of response to light of the abaxial and adaxial stomata of the chimera were practically identical to those of L. esculentum, and quite unlike those of S. pennellii. Thus, the pattern of stomatal light response in the chimera was regulated by the L. esculentum mesophyll. The reduction in stomatal frequency of the chimera, which was regulated by the epidermis of S. pennellii, contributed to the 40% difference in leaf diffusive resistance between the plants in moderate light.