银杏是一种雌雄异株的植物,具有重要的经济和研究价值。
Ginkgo, a plant of dioecism, has important economic and research values.
买麻藤雌雄异株,具穗状花序。
花两性的或植株功能上为雌雄异株。
乔木或灌木,雌雄异株;毛被为单毛。
可授期内人工异株授粉,结籽率可提高到28.0%;
However, hand pollination can raise the rate greatly to 28. 0% .
但是银杏树和美国常见的树种不同,它是雌雄异株植物,也就是说银杏树有分雄性和雌性。
But unlike most tree species common in the us, the ginkgo is dioecious, meaning trees are male or female.
花粉粒染色法监测结果表明:同株异花间的花粉散布频率显著高于异株异花间(P<0.01);
The results showed that the frequency of pollen dispersal (FPD) among flowers was significantly higher on the same cotton plant than on different ones (P<0.01).
植物学家看到,蜜蜂飞来飞去把异株花粉带到雌蕊上,使雌蕊受粉,因此就认为蜜蜂活着是为了传送花粉。
The botanist observes that the bee flying with the pollen fertilises the pistil, and in this he sees the object of the bee.
杏树为蜜蜂提供了丰盛的食物和落脚休息之地,其回报是浑身沾满花粉的蜜蜂与花朵的亲密接触,因而得到与其他杏树异株授粉的机会。
By offering fly-through hospitality, the trees win the prize of a brush with a pollen-covered bee and the chance of cross-pollination with another tree.
例如在雌雄异株物种中的雌性植物和雄性植物,气生的和被水浸没的叶片,生活史中的配子体与孢子体的交替,叶肉和维管束鞘叶绿体等。
Examples include male and female plants in dioecious species aerial and submerged leaves alternation of gametophyte and sporophyte stages of a life cycle and mesophyll and bundle-sheath chloroplasts.
假升麻,绣线菊属植物:(假升麻假升麻属) 属的一高大雌雄异株的植物,产于美国东部,二次羽状复叶,由小白花构成的复总状花序。
A tall dioecious plant (Aruncus dioicus) native to the eastern United States, having bipinnately compound leaves and a large panicle of small white flowers.
基因工程藻株均获得了利用乳糖异养生长的能力。
The genetically-engineered cyanobacterial strains acquired capability of heterotrophic growth on lactose.
丝瓜是一种雌雄异花同株的瓜类作物。
本文从85株霉菌中,筛选得到了六株青霉属D-异抗坏血酸(EA)产生菌,其中点青霉2553产酸能力较高。
Six Penicillium D-isoascorbic acid (EA)-producing strains were screened out from among 85 fungi, and P. notatum 2553 turned out to be the most opwerful.
BIB0830是一株可将泰乐菌素转化为乙酰异戊酰泰乐菌素的耐热链霉菌工业菌株。
The industrial strain BIB0830 of Streptomyces thermotolerans can produce acetyl-isovaleryl tylosin by bioconversion using tylosin as a processor.
从大棚土壤中分离到一株异养型硝化细菌,命名为菌株HN ,分离菌株为革兰氏染色阳性,球状或杆状。
A heterotrophic nitrifier, named strain HN, was isolated from the greenhouse soil. The cells of isolates were Gram positive, rod or coccus.
以底物异丁香酚为唯一碳源从土壤中筛选获得了一株能高效转化异丁香酚生成香草醛的芽孢杆菌。
Using isoeugenol as the sole carbon source, a novel strain, producing high amounts of vanillin from isoeugenol, was isolated from soil.
对五株不同菌属的好氧反硝化菌进行了异养硝化性能研究。
Heterotrophic nitrification characteristics of five aerobic denitrifiers which belong to different genus were studied.
鱼腥藻HB1017株能利用果糖、葡萄糖、蔗糖为底物进行化能异养生长,但生长速率依次递减,差别显著。
Theeffects of fructose, glucose and sucrose, though all supported growth of HB1017, on growth were apparently different.
雌雄同株异花与乔木生活型显著相关并在季节性雨林植被中相对普遍。
Monoecy was significantly associated with the tree growth form and was relatively common in seasonal forest vegetation.
以2株溃疡病菌株及其亚硝酸盐诱变菌株、异核体菌株接种苹果进行致病性测定,经方差分析和多重比较表明,溃疡病菌致病力变异可由亚硝酸盐诱变、异核体产生。
By inoculation on apple with 2 wild canker pathogens and their nitrite mutant isolations and heterokaryotic isolations, the pathogenicity was got and analyzed by variance and multiple comparisons.
我国目前使用的主要活疫苗对异种IBV分离株的感染不能提供完全的保护作用。
The protective efficacy of vaccines showed that the live attenuated vaccines only provided partial protection to the vaccinated chickens against heterologous IBV infection.
目的合成阿霉素聚氰基丙烯酸异丁酯纳米粒,观察其对阿霉素耐受性细胞株K5 6 2 (K5 6 2 /DOX)耐药性逆转效果并探讨可能机制。
Objective To investigate the reversing effect of doxorubicin-loaded polyisobultylcyanoacrylate nanoparticles (NP-DOX) on multidrug resistant cell line K562/DOX and the possible mechanism.
目的合成阿霉素聚氰基丙烯酸异丁酯纳米粒,观察其对阿霉素耐受性细胞株K5 6 2 (K5 6 2 /DOX)耐药性逆转效果并探讨可能机制。
Objective To investigate the reversing effect of doxorubicin-loaded polyisobultylcyanoacrylate nanoparticles (NP-DOX) on multidrug resistant cell line K562/DOX and the possible mechanism.
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