A tiny cushionlike or blisterlike structure produced by certain fungi on a plant host and consisting of a mass of hyphae - bearing asexually produced spores.

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A small projection at the base of a basidiospore near its attachment to the sterigma.

芽枝：位于擔(dān)孢子基部連接擔(dān)孢子梗的一種小附屬物。

Four representative samples of corn southern leaf blight were collected from main sweet corn area in Guangdong province. According to these samples,a race identification of isolated Bipolaria maydis strains was made based on surface morphology of spore through scanning electron microscope and race biological characteristics.

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S extract had an inhibition effect against Sphaerotheca fuligenea,The inhibition rate was 100% when extract concentration was 20mg/mL and the inhibition rate got to 67.66% even at the concentration of 2.5mg/mL. The extract of E. humifusa had different preventive effects against four strains of S. fuliginea from four districts in Shanghai. The preventive effects on the Qibao and Baoshan were better than those of Nanhui and Qingpu. The microorganism inhibition experiment by filter papers indicated that the extract of E. humifusa had higher inhibition effect against bacteria than on pathogenic fungus. Diameters of the zone of inhibition of salmonellas, Echerichia coli and Staphylococcus aureus were 15.77mm, 12.27mm and 10.53mm respectively. The extract of E. humifusa had a certain effect against Colletotrichum lagenarium, Botrytis cinerea, Rhizoctomia solan and Pyricularia oryza but no effect against Helminthosporium maydis and Gibberella zea. The 4 cation exchange resins and ethanol deposition were used to isolate the active fractions from supernate after alkali deposition.

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In this paper, the biological characteristics of florescence, spikelet and inflorescences structure, morphogenesis formation of inflorescence, megasporogenesis and the development of female gametophytes were studied systematically by using anatomy structure, scanning electron microscopic and paraffin section methods. The results were as followed:(1) Phyllostachys praecox was the bamboo flowering fragmentarily; the cultivation changed the characteristic of flowering; the plantlets of flowering were complex and splitted into three kinds: the plantlet flowering before continued flowering; the plantlet flowering before stopped flowering and the plantlet changed into flowering. The inflorescence of Ph. praecox was indefinite inflorescence or called false inflorescence, and actually it was flower stress structure. Its basal unit was pseudospikelet with two kinds: apical spikelet and lateral spikelet. The floret had one lemma, one pelea, three stamens, one pistil and three lodicules.

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In order to better understand their phylogenetic relationship and identify the uncertain species, the sequences of the small subunit ribosomal RNA (ssurRNA, 16 S rRNA) genes of nine microsporidia infectious to the silkworm, Bombyx mori, were determined.

微孢子蟲是真核生物，但其核糖體及核糖體RNA為原核生物型女同一区二区三区。為探討9種家蠶病原性微孢子蟲的種屬地位及親緣關(guān)系jiuse901，對已廣泛用於生物進(jìn)化分類的核糖體小亞單位RNA基因進(jìn)行了研究。

Miescher (1843) in Switzerland from the Rattus rat skeletal muscle was found after Sarcocystis, when he called Milosevic tubule (Miescher 's tabules), a growing number of Sarcocystis in other tissues of the animals was found and naming.

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The impacts of urediniospore activity, concentration of hydrochloric acid and physiological races of rust fungi on protoplast shrinking were also studied.

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It"s vegetal mycelia were colorless, smooth, 1.2μm～3.0μm crude, manyconidiogenous cells born on vegetal mycelia, sometimes as many as a dozen,a very small number were single. The base of conidiogenous cell wasenlarged and many of them were bottle-shaped or spherical. The upper ofconidiogenous cell extended into a conidiogenous axis of 1μm wide and 14μm length which was the knee-bending ("Z like bending), there were small pectinae on the axis, conidium located on the small pectina.

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Ascospores require free moisture plus a food base such as senescent flower petals or damaged tissue to produce a small colony that can then infect the plant. The pathogen produces oxalic acid and numerous enzymes that break down and degrade plant tissue.

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