共生

The discovery of N2 fixation within the leaf-cutter ant-microbe symbiosis reveals a previously unrecognized nitrogen source in neotropical ecosystems.

这种切叶蚁与微生物之间的共生固氮体系的发现，揭示了一类存在与新热带生态系统中先前没被发现的氮来源

Tantalum'.'' oxide of iron and manganese that occurs with niobite or in coarse granite; an ore of ''.

钽'。''氧化物组成的矿物，与铌铁矿共生，亦见于粗糙的花岗岩中，是一种''。

A mineral consisting of tantalum oxide of iron and manganese that occurs with niobite or in coarse granite; an ore of tantalum .

一种由铁和锰的钽氧化物组成的矿物，与铌铁矿共生，亦见于粗糙的花岗岩中，是一种钽矿石。

It was observed that although the pSym-curred strain HND29SR could not nodulate on the host plant Heinong 33, there was no difference in the root colonization dynamics and density of rhizobium population between HND29SR and its wild-type HN01 or reference strain HN01L in sterilized pot-sand system.

这一现象说明HN01所含共生大质粒不影响其根圈定殖行为，有理由推测影响HN01根圈定殖行为的有关基因可能存在于染色体上或另外两个内源质粒上。

After the selection from one to three generations, several mutants were obtained. The major mutants included non-nodule mutants (18 lines) which failed to nodulate after inoculated with rhizobia for two weeks, ineffective nodulation mutants (9 lines) which had less uneven and white or transparent nodules, an abnormal leaf and flower mutant which was dwarf without stipules, abnormal flowers and less nodules, and a slender mutant with a thin stem and smaller leaves.

从种植的三代植株中，筛选到多种共生固氮根瘤的突变体，其中不结根瘤突变体18个株系，表现为接种根瘤菌两周后无根瘤形成；结无效根瘤突变体9个株系，表现为根瘤数目少且分布不均匀，根瘤呈白色，有些为半透明；花叶形态异常突变体1个株系，表现为除根瘤数目少外，植株矮小、托叶消失、花形态异常；纤细突变体1个株系，表现为除根瘤数目少外，植株变小、茎细叶小。

The majority of mutualisms are nonobligatory and opportunistic.

互利共生的多数是非专性和机会性的。

TS:The majority of mutualisms are nonobligatory and opportunistic.

互利共生的多数是非专性和机会性的。

The discoveries of the hemoglobin genes which encode the hemoglobins related to symbiotic nitrogen fixation in legumes and those not related to symbiotic nitrogen fixation in legumes andnon-legumes including cereals , make reseajrchers have a new look, resulting in two kinds of planthemoglobins: symbiotic and nonsymbiotic hemoglobins.

对这两种血红蛋白的性质、功能、基因结构及表达等方面的研究不仅对共生固氮中植物与微生物的相互关系和固氮工程研究；而且对植物细胞的呼吸代谢和耐涝机理等研究有重要价值。

In the symbiosis of western and eastern cultures, the orientalization of the West will become increasingly important.

在东西方文化的共生共成中，西方的&东方化&过程将变得日益重要。

After highly fractionating, this Crrich magma formed massive chromite (i.e., Saertuohai chromite deposit), and the melt moved into the mantle rock, and formed the wormlike intergrowth texture consisting of Crspinel and orthopyroxene.

这种富铬岩浆高度分异形成铬铁矿块体后，熔体进入地幔岩中结晶形成铬尖晶石和斜方辉石的蠕虫状共生连晶结构。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。