兰州市南北两山5种典型人工林凋落物的水文功能

结合野外实地观测和室内浸水试验,对兰州市南北两山5种典型人工林(侧柏林、刺槐林、新疆杨林、侧柏+刺槐混交林、新疆杨+刺槐混交林)凋落物的持水特性进行研究。结果表明: 不同林分类型凋落物的蓄积量在13.50～47.01 t·hm^-2,依次为新疆杨+刺槐混交林＞侧柏+刺槐混交林＞侧柏林＞刺槐林＞新疆杨林。除侧柏林外,其他林分类型的半分解层蓄积量所占比例均高于未分解层。凋落物最大持水率在190.8%～262.7%,新疆杨+刺槐混交林最大,侧柏林最小。凋落物最大持水量在35.29～123.59 t·hm^-2,依次为新疆杨+刺槐混交林＞侧柏+刺槐混交林＞刺槐林＞侧柏林＞新疆杨林。凋落物的吸水速率在浸水0～1 h直线下降,1 h后降幅减缓,未分解层凋落物吸水速率小于半分解层。最大拦截量和有效拦截量(深)均为新疆杨+刺槐混交林＞侧柏+刺槐混交林＞侧柏林＞刺槐林＞新疆杨林,且新疆杨+刺槐混交林有较高的有效拦截率,表明新疆杨+刺槐混交林在兰州市南北两山有较好的保持水土和涵养水源能力。     

Sap flow characteristics and its responses to precipitation in Robinia pseudoacacia and Platycladus orientalis plantations

Aim In the loess hilly region, drought stress frequently occurs during the late spring and early summer as a result of insufficient water supply and asynchronous changes between temperature and precipitation. Our objective was to quantify the characteristics of water-consumption through transpirations and their responses to precipitation in the dominant plantations in this region. Methods Thermal dissipation probe (TDP) was used to measure the sap flow density (F_d) of Robinia pseudoacacia and Platycladus orientalis from April through October in 2009 in Ansai National Ecological Experimental Station. Environmental variables, including meteorological factors and soil water content, were simultaneously measured. Important findings The diurnal variation of F_d exhibited a single-peak curve during the growing season of R. pseudoacacia and P. orientalis. The maximum F_d was three times greater in R. pseudoacacia (0.12068 m³·m^-2·h^-1) than that in P. orientalis (0.03737 m³·m^-2·h^-1). Except in the rapid-growth season (July to August), the F_d of these two species during the post-precipitation period were significantly higher than that during the pre-precipitation period. The F_d of P. orientalis and R. pseudoacacia was well fitted with transpiration (VT), an integrated index calculated from both vapor pressure deficit (VPD) and solar radiation (R_s), using an exponential saturation function. Generally, F_d increased in response to rising VT, while these values tended to be stable when VT reached about 50 kPa (W·m^-2)^1/2. Furthermore, R. pseudoacacia showed more sensitive to precipitation (p < 0.001) than P. orientalis, according to different hydraulic conductance model coefficients (fitting parameter b) between pre- and post-precipitation periods. Therefore, R. pseudoacacia could be considered as a precipitation-sensitive species, while P. orientalisasa precipitation-insensitive species. Through analyzing the different responses of plantation species to precipitation in the loess hilly region, this study provides a scientific basis for the local plantation management from the aspect of tree water use during ecological restoration.     

黄土丘陵区刺槐和侧柏人工林树干液流特征及其对降水的响应

水分供应不足及水热不同步常导致黄土丘陵地区在春末和夏初出现季节性干旱。为阐明该地区主要造林树种的蒸腾耗水特征及其对降水的响应, 使用热扩散式树干茎流计(TDP)于2009年4-10月对黄土丘陵区安塞国家生态试验站刺槐(Robinia pseudoacacia)和侧柏(Platycladus orientalis)的树干液流密度(F_d)进行连续观测, 并同步测定了气象、土壤水分等环境因子。结果表明: 刺槐和侧柏在生长季内不同生长时期的F_d均表现为单峰型日变化特征, 刺槐最高液流峰值为0.12068 m³·m^-2·h^-1, 是侧柏最高液流值(0.03737 m³·m^-2·h^-1)的3.23倍。除生长旺盛季(7-8月)外, 刺槐和侧柏降水后的F_d明显高于降水前。同时反映水汽压差(VPD)和太阳辐射(R_s)的蒸腾变量(VT)能够很好地模拟F_d, 且两者呈显著的指数正相关关系, 随VT的增加F_d逐渐增大, VT增加到50 kPa (W·m^-2)^1/2左右时, F_d的变化趋于稳定; 通过对降水前后两个树种水力导度(拟合参数b值)分析, 相对于侧柏, 刺槐更易受降水的影响(p < 0.001)。因此, 可认为刺槐是降水敏感型植物, 而侧柏是降水不敏感型植物。该研究通过分析黄土丘陵区人工林树种对降水的差异性响应, 从树木水分利用方面能够为当地生态恢复过程中人工林的管理提供科学依据。     

黄土高原不同人工林叶片-凋落叶-土壤生态化学计量特征

为探究“退耕还林(牧)”工程对陕西省子午岭林区的影响,分析3种典型的人工林(刺槐林、油松林和侧柏林)叶片-凋落叶-土壤的C、N、P含量及其生态化学计量特征.结果表明: 3种人工林不同组分中C、N、P含量大小均为叶片>凋落叶>土壤,刺槐林叶片N、P含量显著高于油松林和侧柏林.刺槐林、油松林和侧柏林叶片N∶P分别为12.2、5.4和6.1,油松和侧柏较刺槐林存在N亏损,C∶N和C∶P大小均为凋落叶>叶片>土壤,N∶P为叶片>凋落叶>土壤.油松林叶片C∶N与凋落叶C∶N间存在显著正相关关系.刺槐叶片在生长周期内吸收利用的N和P存在比例关系,且其凋落叶在元素再吸收后N和P的残留量也存在比例关系.与油松和侧柏相比,刺槐是黄土高原南部森林带最适宜的造林树种.     

Differential effects of abscisic acid on desiccation tolerance and carbohydrates in three species of liverworts

Tissues of three species of in vitro grown liverworts, Riccia fluitans, Pallavicinia lyellii, and Marchantia polymorpha, were subjected to rapid drying with and without preculture for 1 week on medium containing 10 μM ABA. ABA preculture initiated total desiccation tolerance in R. fluitans, whereas control tissues were killed after 30 min of drying. Survival was also improved in P. lyellii, whereas ABA did not affect survival of M. polymorpha after rapid drying. ABA treatment did, however, reduce the rate of water loss in M. polymorpha. Total soluble carbohydrates were increased in ABA-treated R. fluitans and P. lyellii, but not in M. polymorpha, although there was no correlation between survival and changes in the percentage of these carbohydrates as reducing sugars. These differences in response to ABA and desiccation likely reflect different adaptations of these three species to conditions in situ.     

Phylogenetic relationships and the maternal donor of Roegneria (Triticeae: Poaceae) based on three nuclear DNA sequences (ITS,Acc1, and Pgk1) and one chloroplast region (trnL-F)

Roegneria is a polyploid perennial genus in the tribe Triticeae. Some species of Roegneria are morphologically similar to genus Elymus and have been classified in Elymus. To investigate the delimitation and phylogenetic relationships of Roegneria, nuclear (ITS, Acc1, and Pgk1) and chloroplast (trnL–trnF) DNA regions were sequenced for 38 allopolyploid species and 32 diploid species of Triticeae. Phylogenetic analyses of nuclear DNA revealed that all Roegneria species were included in the St and Y genome clades, and that the Y genome was closely related to the V and Xp genomes. The chloroplast DNA dataset showed that Roegneria species were grouped with Pseudoroegneria species. The Pseudoroegneria species from the Middle East (P. libanotica and P. tauri) and Central Asia (P. strigosa) were more closely related to Roegneria species. The results suggested that: (i) the species containing the St and Y genomes should be segregated from Elymus and treated as a distinct genus, Roegneria, based on the genomic constitution; (ii) P. libanotica, P. tauri, and/or P. strigosa potentially served as the maternal donor of the St genome in Roegneria; (iii) The Y genome of Roegneria originated from a diploid Y genome species, and the V and Xp genomes may have contributed to Y genome formation; (iv) among Roegneria species of previously uncertain genomic constitution, R. seriotina was tetraploid and possessed the StY genomes, E. calcicolus was hexaploid with the StYH genomic constitution and should be classified in Campeiostachys, R. glaucifolia possessed the StStY genomes, and R. tschimganica had the genomic constitution St₁St₂Y.     

湖南农业鼠害防治技术研究 Ⅰ.害鼠的种类、害区和与防治有关的生物学特性

本文报道湖南省的农业鼠害防治技术,内容包括农业鼠害、鼠种组成、鼠害类型、鼠类生态等生物学特性,为大面积全生境灭鼠提供综合性的防治技术措施。     

黄土丘陵区刺槐群落林下物种分布对环境因子的响应

以吴起、安塞、米脂、宜川等地刺槐群落为对象,结合种群生态位宽度及土壤、海拔等环境因子探究刺槐林下物种分布特征及其影响因素,分析该地区刺槐林下物种分布对环境因子的响应机制,为黄土丘陵区刺槐林的管理提供科学依据.结果表明:在黄土丘陵区不同生长年限刺槐林中,分布较为广泛的物种有狗尾草、阿尔泰狗娃花、猪毛蒿、硬质早熟禾、茭蒿、苦荬菜、角蒿等.随刺槐生长年限的增加(10年至50年),林下物种优势种的分布更替依次为:茵陈蒿→硬质早熟禾→猪毛蒿→其他(茜草、悬钩子蔷薇等)→茭蒿→狗尾草.对刺槐林下物种分布影响较大的因子依次为土壤全磷含量(25.6%)>海拔(20.3%)>土壤全氮(19.3%).土壤有机碳含量、土壤全氮含量、土壤全磷含量、土壤含水量与刺槐林下物种的分布数量呈正相关,相关程度因种群不同而有所差异.坡向对刺槐林下物种的分布无明显影响.综上所述,地形与土壤因子在刺槐林下物种的分布中均占有重要地位,坡度越大,海拔越高,刺槐林下物种的分布种类越少.其次,土壤全磷含量和海拔是影响刺槐林下物种分布的重要环境因子.刺槐林下物种的分布是土壤养分状况的反映,对刺槐林的管理具有一定的指示作用.     

Parasitism activity of Peristenus spp. (Hymenoptera: Braconidae) on Lygus lineolaris (Hemiptera: Miridae) nymphs prior to the establishment of P. digoneutis in southwestern Quebec

Parasitism of tarnished plant bug nymphs, Lygus lineolaris (Palisot de Beauvois) was investigated on different weeds and on lettuce, celery and alfalfa-clover, in a muck soil area of southwestern Quebec. The phenology of parasitism, defined as the time during which female parasitoids are active in the field, was evaluated. Two nymphal parasitoid species were found: Peristenus pallipes (Curtis) and P. pseudopallipes (Loan). Lygus lineolaris was most abundant on stinging-nettle with levels of parasitism of 17% (P. pallipes) and 27% (P. pseudopallipes) and on alfalfa-clover with levels of parasitism of 25% (P. pallipes) and 8% (P. pseudopallipes). On lettuce, parasitism by P. pseudopallipes was below 4% while no parasitism was observed on celery. The dissection and rearing methods were used to estimate parasitism, and dissection usually yielded parasitism levels higher than rearing. Degree-days requirements of both host and parasitoids were used to calculate the period of activity of parasitoid adults. The estimates of adult activity were 47 days from late May to early July for P. pallipes, and 42 days from mid-July to late August for P. pseudopallipes.     

人工油松林中不同植物叶片非结构性碳水化合物含量对氮添加的响应

全球氮沉降通过影响树木叶片的生理过程影响森林生态系统的结构与组成,但目前关于氮沉降对森林生态系统中不同植物叶片非结构性碳水化合物(NSC)含量的影响还不十分清楚.本研究选取黄土丘陵区人工油松林中油松、辽东栎、忍冬、绣线菊、黄刺玫、茜草、披针苔草7种主要高等植物,比较了3年氮添加(0、3、6、9 g N·m^-2·a^-1,分别用N₀、N₃、N₆、N₉表示)对7种植物叶片中NSC的影响.结果表明: 不同植物叶片可溶性糖、淀粉含量变异很大,二者变异最高的均为黄刺玫,最低的分别为绣线菊和披针苔草;不同植物可溶性糖、淀粉对氮添加的响应存在明显差异.N₆处理下茜草的可溶性糖和淀粉的变异高于其他物种,N₃和N₉处理下绣线菊的变异高于其他物种,可溶性糖和淀粉含量变异最小的物种在不同氮添加水平下不同.随着氮添加水平的增加,油松和披针苔草的可溶性糖含量持续升高,绣线菊持续降低,辽东栎、忍冬和黄刺玫的可溶性糖含量先降低后增加,在N₆处理达到最小,而茜草的可溶性糖含量呈现较复杂的变化趋势.氮添加对植物叶片中淀粉含量的影响表现为油松、忍冬和披针苔草的淀粉含量持续增加,绣线菊先降低后增加,在N₃处理达到最小,而黄刺玫和茜草则呈现较复杂的变化趋势,辽东栎淀粉含量变化趋势平缓.在氮添加后,土壤pH、有机碳、全氮、全磷与植物叶片NSC含量无相关关系,仅N₀和N₃水平下上述土壤理化指标会显著影响可溶性糖/淀粉.表明林地不同植物叶片中NSC含量对氮添加的响应明显不同,研究全球氮沉降或氮添加对林地生态系统的影响需要考虑不同植物,尤其不同生活型植物的不同响应.     

印度蔊菜与无瓣蔊菜形态变异特征的比较及分类关系

印度蔊菜(Rorippa indica)与无瓣蔊菜(R. dubia)的分类关系仍存在较大争议, 为阐明二者的分类学关系, 本研究综合利用形态指标测量、DNA相对含量检测、体细胞染色体观察和基于SSR分子标记的遗传距离分析等方法, 系统地比较了二者的分类学特征和细胞遗传学差异。结果表明: 印度蔊菜(2n = 48)为六倍体, 无瓣蔊菜(2n = 32)为四倍体。同时, 前者DNA相对含量约为150, 是后者的1.5倍。通过45对SSR分子标记的遗传距离分析得出, 相对于球果蔊菜(R. globosa)与欧亚蔊菜(R. sylvestris), 二者亲缘关系较近, 独立聚类为一支, 但在遗传距离为0.23处可以明确划分为两个种。同时, 利用角果长度和结籽密度两个形态指标可以将二者明显区分为两个种。另外, 二者存在明显的生殖障碍, 通过正反交授粉实验得出: 印度蔊菜与无瓣蔊菜自花授粉的结实率分别为97.73%和95.65%, 而以印度蔊菜为母本的杂交处理结实率为0, 以无瓣蔊菜为母本的杂交处理结实率为47.06%, 但其种子萌发率为0。综上所述, 印度蔊菜与无瓣蔊菜为两个种。     

实验室培养条件下绒泡菌科四种黏菌个体发育比较研究

本文应用悬滴培养、燕麦-琼脂培养等方法及显微成像技术对绒泡菌科Physaraceae 4种黏菌（黄头绒泡菌Physarum flavicomum、淡黄绒泡菌Physarum melleum、垂头绒泡菌Physarum album、针箍菌Physarella oblonga）的个体发育特征进行比较研究,首次实现了垂头绒泡菌在实验室条件下的完整生活循环。4种黏菌孢子萌发均为V-型开裂,但萌发时间有所不同,黄头绒泡菌萌发所需时间最短,仅需5h,而针箍菌萌发所需时间最长,需要2d;针箍菌和淡黄绒泡菌形成的黏变形体均可转变为游动胞,而相同条件下黄头绒泡菌和垂头绒泡菌并未有游动胞形成;4种黏菌原生质团的生长速率不同,在光照刺激下针箍菌、淡黄绒泡菌、黄头绒泡菌和垂头绒泡菌的原生质团分别经过2-3d、2-3d、7d和13d,发育成子实体;完成孢子到孢子的整个生活史,针箍菌和淡黄绒泡菌需要25-30d,黄头绒泡菌和垂头绒泡菌需要40-45d。     

Euploid and aneuploid evolution in Potamogeton (Potamogetonaceae): a factual basis for interpretation

In a review of chromosome numbers in the genus Potamogeton, we highlight numerous errors that have crept into the literature. These have resulted chiefly from reliance on abstracts in chromosome number indices and compilations, rather than on the original publications, but partly also because of misleading summaries even in the primary literature. We present a list of counts that we believe are original and genuine, and a list of those that were never made but which nevertheless appear in the literature. Scrutiny of the list of accepted counts indicates that aneuploidy is widespread in the genus and that transition between the two common chromosome numbers (2n=26 and 2n=28) has occurred several times. Currently available data are insufficient to resolve the question of the ancestral base number. We also present details of the first chromosome counts from English populations of five taxa: P. polygonifolius Pourr. (2n=28), P. pectinatus L. (2n=ca. 78), P. perfoliatus L. (2n=ca. 52), P.×nitens Weber (P. gramineus×P. perfoliatus) (2n=ca. 52) and P.×salicifolius Wolfg. (P. lucens×P. perfoliatus) (2n=ca. 52).     

Sensitivity of virally-driven luciferase reporter plasmids to members of the steroid/thyroid/retinoid family of nuclear receptors

During a series of transfection experiments, the pRSV-luc plasmid used as an internal control was found to be sensitive to co-transfection with expression vectors for several members of the steroid/thyroid/retinoid superfamily of nuclear receptors. Therefore, a survey of the effect of these expression vectors on the activity of four reporter plasmids was conducted. In CV-1 cells, the activity of pRSV-luc, which contains the P. pyralis luciferase gene, was repressed by co-transfection of PPAR and ARP-1 and was activated by COUP-TFI. Expression of pSV40-luc, containing the same luciferase gene, was repressed by PPAR and HNF-4 and activated by both COUP-TFI and ARP-1. All four of these expression vectors reduced the expression of the pRL-TK plasmid, which contains the luciferase gene from Renilla reniformis. RXR expression vectors had no effect on luciferase activity in CV-1 cells but induced luciferase activity in H4IIEC3 hepatoma cells. This activation was blocked by the addition of ligand, 9-cis retinoic acid. pSV2-CAT, which contains the chloramphenicol acetyltransferase gene, was insensitive to all receptor expression vectors tested. Both the P. pyralis and R. reniformis luciferase genes appear to contain sequences that render them responsive to steroid/thyroid/retinoid nuclear receptors.     

四种菊头蝠染色体组型分析

本文分析了皮氏菊头蝠(R. pearsoni chinensis),鲁氏菊头蝠(R.rouxi sinicus),角菊头蝠(R.cornutus pumilus)及中菊头蝠(R.affinis)的常规核型,现报道如下。     

Production of (S)-styrene oxide by recombinant Pichia pastoris containing epoxide hydrolase from Rhodotorula glutinis

A recombinant yeast Pichia pastoris carrying the gene encoding epoxide hydrolase (EH) of Rhodotorula glutinis was constructed and used for producing (S)-styrene oxide by enantioselective hydrolysis of racemic mixtures of styrene oxides. The EH gene was obtained by PCR amplification of cDNA of R. glutinis and integrated into the chromosomal DNA of P. pastoris to express EH under the control of AOX promoter. The recombinant yeast has a high hydrolytic activity toward (R)-styrene oxide as 358 nmol min⁻¹ (mg cell)⁻¹, which is about 10-fold higher than that of wild type R. glutinis. When kinetic resolution was conducted by the recombinant yeast at a high initial epoxides concentration of 526 mM that constitutes an epoxide–water two-liquid phase, chiral (S)-styrene oxide with an enantiomeric excess (e.e.) higher than 98% was obtained as 36% yield (theoretical, 50%) at 16 h.     

Synthesis and structure-activity relationships of cephalosporins, 2-isocephems, and 2-oxaisocephems with C-3′ or C-7 catechol or related aromatics

A series of cephalosporins, 2-isocephems, and 2-oxaisocephems with C-3′ catechol-containing (pyridinium-4-thio)methyl groups and 2-isocephems with C-7 catechol related aromatics have been prepared and evaluated for antimicrobial activity. It turns out that these compounds have highly potent activity against Gram-negative bacteria, especially resistant pathogens such as Pseudomonas aeruginosa. The most active compound of the series was (6S,7S)-7-[2-(2-aminothiazol-4-yl)-2-[(Z)-[(1,5-dihydroxy-4-pyridon-2-yl)methoxy] imino]acetamido]-3-[[[(4-methyl-5-carboxymethyl)thiazol-2-yl]thio]methyl]-8-oxo-1-aza-4-thiabicyclo [4.2.0] oct-2-ene-2-carboxylic acid which exhibited potent in vitro activity against clinically isolated P. aeruginosa and Acinetobacter baumanii which is also resistant to many anti-infectives, and good in vivo efficacy against clinically isolated P. aeruginosa.

A series of cephalosporins, 2-isocephems, and 2-oxaisocephems and C-3′ or C-7 catechol or related aromatics have been prepared and evaluated for antibacterial activity.     

Influence of oxygen on ethanol and xylitol production by xylose fermenting yeasts

The behaviour of Pichia stipitis, Pachysolen tannophilus, Candida shehatae and Candida parapsilosis was investigated to select the most suitable yeast to convert xylose either to ethanol or to xylitol, with little or no formation of by-products. The aeration rate was used as a variable parameter. P. stipitis and C. parapsilosis were the most effective producers or ethanol and xylitol, respectively, both reaching productivities at very low levels of oxygenation. With P. stipitis, better ethanol productivity was attained under microaerobic conditions (K_La = 4·8 h⁻¹) while with C. parapsilosis high yields and rates of xylitol production were detected at K_La values of about 16·3 h⁻¹. P. tannophilus and C. shehatae showed lower performances under all conditions used while changes in oxygenation modified the ratio of ethanol to xylitol produced by these yeasts, suggesting that they are more dependent on the oxygen power input than P. stipitis and C. parapsilosis. The influence of oxygen transfer rates on ethanol and xylitol formation with the best producers is discussed.     

兰州市某交通干道土壤重金属分布特征及其对绿化植物的影响

为研究交通运输造成的重金属污染特征及潜在生态风险,选取兰州市某交通干道,利用原子吸收分光光度计检测了金属元素的含量,并利用单因子指数法和潜在生态风险指数法评价了土壤污染程度和潜在生态风险,进而分析了土壤重金属污染对绿化植物叶绿素和Ca含量的影响。结果表明: 城市交通导致土壤重金属Cr、Mn、Zn、Cu和Ni的含量均显著增高,且Cr、Pb和Cu达到了中度污染,潜在生态风险排序为Cu＞Pb＞Cr＞Ni＞Zn＞Mn;槐树、月季、紫叶李和冬青卫矛对交通源重金属Pb、Mn、Zn、Ni等表现出不同程度的积聚作用;落叶植物槐树、月季和紫叶李叶片中叶绿素含量表现为路侧采样点＞对照点,而常绿植物冬青卫矛和侧柏的叶绿素含量为对照点＞路侧采样点,所有绿化植物叶片中Ca含量表现为路侧采样点＞对照点,高的叶绿素和Ca含量可能有利于绿化植物在土壤重金属污染环境中生存。交通运输导致研究区域土壤中重金属Cr、Mn、Zn、Cu和Ni等的积累;槐树、月季、紫叶李和冬青卫矛等对Pb、Mn、Zn和Ni具有不同程度的积聚作用,可推荐为相应重金属污染土壤绿化植物。     

镉胁迫对绢毛委陵菜-丛枝菌根真菌共生体根系结构和生理的影响

为从生理水平上揭示绢毛委陵菜（Potentilla sericea L.）-丛枝菌根真菌共生体对镉胁迫的应答机制,以绢毛委陵菜多年生植株为试验材料,分别接种根内根生囊霉（Rhizophagus intraradices）和摩西球囊霉（Funneliformis mosseae）,80 d后以不同浓度的镉胁迫处理并测定菌根侵染率,研究侵染率较高菌种的共生体植株的生理指标变化和结构变化。结果表明：摩西球囊霉较根内根生囊霉对绢毛委陵菜菌根侵染率高,达100%,而根内根生囊霉侵染率为89.33%;接种摩西球囊霉真菌的植物,当镉质量浓度达10 mg?L^-1时,细胞壁小范围破裂、液泡出现变小的趋势,高浓度镉（20 mg?L^-1）处理时,根系细胞壁破裂,细胞无法维持原有形态;镉胁迫下,Cd（5 mg?L^-1）~ Cd（10 mg?L^-1）MDA含量显著上升（P<0.05）,Cd（0 mg?L^-1）~Cd（5 mg?L^-1）SOD活性和脯氨酸含量变化显著（P<0.05）,可溶性蛋白含量和叶绿素含量显著减少（P<0.05）,Cd（10 mg?L^-1）~Cd（15 mg?L^-1）可溶性蛋白含量和叶绿素含量变化不显著（P>0.05）,植物可以抵抗一定浓度范围的镉胁迫。综合来看,接种摩西球囊菌可以增强绢毛委陵菜耐镉胁迫能力,为利用绢毛委陵菜修复镉污染土壤提供了理论依据。