相互嫁接对两种生态型牛膝菊后代生长及镉积累的影响
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作者单位:

(1.四川农业大学园艺学院,四川 成都 611130;2.四川大学生命科学学院,四川 成都 610064;3.达州市农业科学研究院,四川 达州 635000;4.四川农业大学果蔬研究所,四川 成都 611130)

作者简介:

黄科文(1992-),男,四川双流人,博士研究生,主1 材料与方法要从事果树生理生态研究。E-mail:hkewen@foxmail.com。

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基金项目:

基金项目:四川省教育厅项目(17ZB0342)。


Effects of mutual grafting on growth and cadmium accumulation of two ecotypes of Galinsoga parviflora post generations
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(1.College ofHorticulture,Sichuan Agricultural University,Chengdu Sichuan611130;2.College of Life Sciences,SichuanUniversity,Chengdu Sichuan610064;3.Dazhou Academy of Agricultural Sciences,Dazhou Sichuan635000;4.Institute of Pomology andOlericulture,Sichuan AgriculturalUniversity,Chengdu Sichuan611130)

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    摘要:

    为研究砧穗互作对超富集植物嫁接后代重金属积累的影响,通过盆栽试验,研究了相互嫁接对 2种生态型(矿山生态型和农田生态型)牛膝菊后代在镉胁迫下生长及镉积累的影响。结果表明,与未嫁接相比,相互嫁接的牛膝菊后代生物量、光合色素含量及可溶性蛋白含量的差异不显著或略有降低。矿山生态型的砧木及接穗后代抗氧化酶活性显著提高,而农田生态型的砧木及接穗后代抗氧化酶活性的变化不显著或略有降低。与农田生态型未嫁接相比,农田生态型的砧木及接穗后代的植株镉含量均显著降低,其中地上部分镉含量分别降低了 5.96%和 9.23%;与矿山生态型未嫁接相比,矿山生态型砧木后代植株的镉含量显著降低,但其接穗后代的植株镉含量显著升高。因此,砧穗互作能够影响牛膝菊嫁接后代的镉积累,且不同生态型相互嫁接能在一定程度上降低或提高牛膝菊后代的镉含量。

    Abstract:

    To study the effects of interaction of rootstock and scion on heave metal accumulation of post-grafting generationsof hyperaccumulator,the mining ecotype and farmland ecotype of Galinsoga parviflora were mutual grafted with eachother,and planted in cadmium contaminated soil by the pot experiment to study the effects of mutual grafting on growth and cadmium accumulation of two ecotypes of G. parviflorapost generations. Compared with the ungrafted treatment,thebiomass,photosynthetic content and the content of soluble protein content of post -grafting generation of G. parviflora were not significantly or slightly decreased. The antioxidant enzymes activities in mining ecotype of post-grafting generation of G. parviflorasignificantlyincreased,and the changes of antioxidant enzymes activities in farmland ecotype of post -grafting generation of G. parviflorawere not significantly or slightly decreased. Compared with the ungrafted farmlandecotype,the cadmium contents in post-grafting generation of farmland ecotype of rootstock and scion were significantly decreased,andthe cadmium contents in shoots of them decreased by 5.96% and9.23%,respectively. Compared with the ungrafted miningecotype,the cadmium content in post -grafting generation of mining ecotype of rootstock was significantlydecreased,but the cadmium content in post-grafting generation of mining ecotype of scion was significantly increased.Therefore,the interaction of rootstock and scion could affect the cadmium accumulation of in post-grafting generation of G. parviflora,and the mutual grafting of different ecotypes could decrease or improve the cadmium content in G. parviflora post generation.

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黄科文,姚欢,马倩倩,吴彩芳,廖明安,林立金.相互嫁接对两种生态型牛膝菊后代生长及镉积累的影响[J].中国土壤与肥料,2020,(5):207-212.

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  • 收稿日期:2019-08-27
  • 最后修改日期:
  • 录用日期:2019-09-28
  • 在线发布日期: 2020-11-06