？？ Topping J F,May V J,Muskett P R,et al.Mutations in the HYDRA1 gene of Arabidopsis perturb cell shape and disrupt embryonic and seedling morphogenesis[J].Development,1997,124(21):4415-4424.？
[2]
？？ Yamamoto R,Fujioka S,Iwamoto K,et al.Co-regulation of brassinosteroid biosynthesis-related genes during xylem cell differentiation[J].Plant and Cell Physiology,2007,48(1):74-83.？
[3]
？？ Xia X J,Wang Y J,Zhou Y H,et al.Reactive oxygen species are involved in brassinosteroid-induced stress tolerance in cucumber[J].Plant Physiology,2009,150(2):801-814.？
[4]
？？ Guan M,Roddick J G.Comparison of the effects of epibrassinolide and steroidal estrogens on adventitious root growth and early shoot development in mung bean cuttings[J].Physiologia Plantarum,1988,73(3):426-431.？？
[5]
？？ Li S,Wang F,Dong J.A proteomic approach to investigating the promotive effects of brassinolide on root growth of rice seedlings[J].Frontiers of Agriculture in China,2011,5(2):146-151.？
[6]
？？ Cosgrove D J.Growth of the plant cell wall[J].Nature Reviews Molecular Cell Biology,2005,6(11):850-861.？
Cano-Delgado A,Yin Y,Yu C,et al.BRL1 and BRL3 are novel brassinosteroid receptors that function in vascular differentiation in Arabidopsis[J].Development,2004,131(21):5341-5351.？
[9]
Zhiponova M K,Vanhoutte I,Boudolf V,et al.Brassinosteroid production and signaling differentially control cell division and expansion in the leaf[J].New Phytologist,2013,197(2):490-502.？
[10]
Kwon M,Choe S.Brassinosteroid biosynthesis and dwarf mutants[J].Journal of Plant Biology,2005,48(1):1-15.？
[11]
Fujioka S,Li J,Choi Y H,et al.The Arabidopsis deetiolated2 mutant is blocked early in brassinosteroid biosynthesis[J].The Plant Cell Online,1997,9(11):1951-1962.？
[12]
Choe S,Dilke B P,Fujioka B P,et al.The DWF4 gene of Arabidopsis encodes a cytochrome P450 that mediates multiple 22α-hydroxylation steps in brassinosteroid biosynthesis[J].The Plant Cell Online,1998,10(2):231-243.？
[13]
Choe S,Dilkes B P,Gregory B D,et al.The Arabidopsis dwarf1 mutant is defective in the conversion of 24-methylenecholesterol to campesterol in brassinosteroid biosynthesis[J].Plant Physiology,1999,119(3):897-908.？
[14]
代庆海.矮生西洋梨离体保存及矮化机理研究[D].青岛:青岛农业大学,2008.？？
[15]
Ohnishi T,Szatmari A M,Watanabe B,et al.C-23 hydroxylation by Arabidopsis CYP90C1 and CYP90D1 reveals a novel shortcut in brassinosteroid biosynthesis[J].The Plant Cell Online,2006,18(11):3275-3288.？？
[16]
Jager C E,Symons G M,Ross J J,et al.The brassinosteroid growth response in pea is not mediated by changes in gibberellin content[J].Planta,2005,221(1):141-148.？
[17]
Szekeres M,Németh K,Koncz-Kálmán Z,et al.Brassinosteroids rescue the deficiency of CYP90,a cytochrome P450,controlling cell elongation and de-etiolation in Arabidopsis[J].Cell,1996,85(2):171-182.？
[18]
Iwasaki T,Shibaoka H.Brassinosteroids act as regulators of tracheary-element differentiation in isolated Zinnia mesophyll cells[J].Plant and Cell Physiology,1991,32(7):1007-1014.？
[19]
Turner S,Gallois P,Brown D.Tracheary element differentiation[J].Annu Rev Plant Biol,2007,58:407-433.？
[20]
Cavusoglu K,Kilic S,Kabar K.Effects of some plant growth regulators on stem anatomy of radish seedlings grown under saline (NaCl) conditions[J].Plant Soil Environ,2008,54(10):428-433.？
[21]
Verma A,Malik C,Chaturvedi V.Varietal differences in epicuticular wax content in peanut[J].American-Eurasian Journal of Sustainable Agriculture,2009(3):328-331.
