【目的】比较不同基因型甘蔗对锰毒黄化抗性的差异,为解决甘蔗幼苗黄化问题提供科学依据。【方法】采用田间和培养试验,研究锰胁迫下幼苗的黄化、叶片叶绿素含量、植株锰铁含量及基因型差异。【结果】种植在该试验地酸性土壤上的宿根蔗...【目的】比较不同基因型甘蔗对锰毒黄化抗性的差异,为解决甘蔗幼苗黄化问题提供科学依据。【方法】采用田间和培养试验,研究锰胁迫下幼苗的黄化、叶片叶绿素含量、植株锰铁含量及基因型差异。【结果】种植在该试验地酸性土壤上的宿根蔗幼苗,新台糖22全部黄化,而其它基因型的黄化率为33.3%?50.0%;赣56-261、F175的SPAD值显著高于粤农75-159、粤糖70-129,斑231的SPAD值也显著高于斑233。经0.5 mM MnCl2处理的甘蔗,其茎基部再次萌发的幼苗黄化症状中,新台糖22比赣56-261、F175明显。锰处理15 d后新台糖22的生物量显著降低,但其它基因型甘蔗的生物量降低不显著。锰处理后新台糖22的锰吸收量虽然显著低于除赣56-261外的其它基因型,但锰向地上部及叶片的转移系数显著高于其它基因型。锰胁迫下,赣56-261、F175的幼叶片锰含量显著低于新台糖22,而铁含量显著高于粤糖70-129、粤农75-159和新台糖22。然而,幼叶细胞壁中锰含量在不同甘蔗基因型间差异并不显著。2个斑茅基因型植株的锰含量、分布、铁素含量的差异也不显著。【结论】甘蔗对锰毒黄化抗性存在明显的基因型差异,其中赣56-261和F175为抗性基因型,新台糖22为敏感基因型,而粤糖70-129、粤农75-159介于二者之间;此差异与锰的含量、分布及铁素营养有关。展开更多
Objective:To compare the effectiveness of fire needle versus Western medicine in the treatment of herpes zoster.Methods:Randomized controlled trials comparing fire needle with Western medicine in the treatment of herp...Objective:To compare the effectiveness of fire needle versus Western medicine in the treatment of herpes zoster.Methods:Randomized controlled trials comparing fire needle with Western medicine in the treatment of herpes zoster were identified using 8 databases.A meta-analysis was performed using RevMan 5.3 software.Results:Eight trials involving 569 patients were included in this meta-analysis,and the results showed that fire needle was superior to Western medicine comparing the effective rate[risk ratio(RR)=1.13,95%confidence interval(Cl):1.06 to 1.20;P=0.0002],the visual analog scale(VAS)score[mean difference(MD)=-7.95;95%Cl:-10.71 to-5.20;P<0.00001],time of pain disappearance(MD=-7.61;95%CI:-9.38 to-5.84;P<0.00001),time of blister-stop(MD=-1.34,95%CI:-1.51 to-1.18;P<0.00001),time of crusted scab(MD=-2.92,95%CI:-3.62 to-2.23;P<0.00001);and time of scab off(MD=-4.64,95%CI:-5.83 to-3.46;P<0.00001).In addition,a significantly lower incidence of postherpetic neuralgia was found in the fire needle group in 30 d(RR=0.23,95%CI:0.11 to 0.51;P=0.0002)and 60 d(RR=0.33,95%CI:0.12 to 0.91;P=0.03)after treatment.Conclusion:Fire needle has a favorable effect in increasing the effective rate,relieving pain,recovering skin lesions and decreasing incidence of postherpetic neuralgia in the treatment of herpes zoster.However,considering the limitations in this study,the findings should be interpreted cautiously.展开更多
文摘【目的】比较不同基因型甘蔗对锰毒黄化抗性的差异,为解决甘蔗幼苗黄化问题提供科学依据。【方法】采用田间和培养试验,研究锰胁迫下幼苗的黄化、叶片叶绿素含量、植株锰铁含量及基因型差异。【结果】种植在该试验地酸性土壤上的宿根蔗幼苗,新台糖22全部黄化,而其它基因型的黄化率为33.3%?50.0%;赣56-261、F175的SPAD值显著高于粤农75-159、粤糖70-129,斑231的SPAD值也显著高于斑233。经0.5 mM MnCl2处理的甘蔗,其茎基部再次萌发的幼苗黄化症状中,新台糖22比赣56-261、F175明显。锰处理15 d后新台糖22的生物量显著降低,但其它基因型甘蔗的生物量降低不显著。锰处理后新台糖22的锰吸收量虽然显著低于除赣56-261外的其它基因型,但锰向地上部及叶片的转移系数显著高于其它基因型。锰胁迫下,赣56-261、F175的幼叶片锰含量显著低于新台糖22,而铁含量显著高于粤糖70-129、粤农75-159和新台糖22。然而,幼叶细胞壁中锰含量在不同甘蔗基因型间差异并不显著。2个斑茅基因型植株的锰含量、分布、铁素含量的差异也不显著。【结论】甘蔗对锰毒黄化抗性存在明显的基因型差异,其中赣56-261和F175为抗性基因型,新台糖22为敏感基因型,而粤糖70-129、粤农75-159介于二者之间;此差异与锰的含量、分布及铁素营养有关。
文摘Objective:To compare the effectiveness of fire needle versus Western medicine in the treatment of herpes zoster.Methods:Randomized controlled trials comparing fire needle with Western medicine in the treatment of herpes zoster were identified using 8 databases.A meta-analysis was performed using RevMan 5.3 software.Results:Eight trials involving 569 patients were included in this meta-analysis,and the results showed that fire needle was superior to Western medicine comparing the effective rate[risk ratio(RR)=1.13,95%confidence interval(Cl):1.06 to 1.20;P=0.0002],the visual analog scale(VAS)score[mean difference(MD)=-7.95;95%Cl:-10.71 to-5.20;P<0.00001],time of pain disappearance(MD=-7.61;95%CI:-9.38 to-5.84;P<0.00001),time of blister-stop(MD=-1.34,95%CI:-1.51 to-1.18;P<0.00001),time of crusted scab(MD=-2.92,95%CI:-3.62 to-2.23;P<0.00001);and time of scab off(MD=-4.64,95%CI:-5.83 to-3.46;P<0.00001).In addition,a significantly lower incidence of postherpetic neuralgia was found in the fire needle group in 30 d(RR=0.23,95%CI:0.11 to 0.51;P=0.0002)and 60 d(RR=0.33,95%CI:0.12 to 0.91;P=0.03)after treatment.Conclusion:Fire needle has a favorable effect in increasing the effective rate,relieving pain,recovering skin lesions and decreasing incidence of postherpetic neuralgia in the treatment of herpes zoster.However,considering the limitations in this study,the findings should be interpreted cautiously.
