Mycofumigation with Oxyporus latemarginatus EF069 for control of postharvest apple decay and Rhizoctonia root rot on moth orchid

Aims:  To characterize the volatile antifungal compound produced by Oxyporus latemarginatus EF069 and to examine in vitro and in vivo fumigation activity of the fungus.
Methods and Results:  An antifungal volatile-producing strain, O. latemarginatus EF069 inhibited the mycelial growth of Alternaria alternata , Botrytis cinerea , Colletotrichum gloeosporioides , Fusarium oxysporum f. sp. lycopersici , and Rhizoctonia solani by mycofumigation. An antifungal volatile compound was isolated from the hexane extract of wheat bran–rice hull cultures of O. latemarginatus EF069 by repeated silica gel column chromatography and identified as 5-pentyl-2-furaldehyde (PTF). The purified PTF inhibited mycelial growth of R . solani in a dose-dependent manner. The mycofumigation with solid cultures of EF069 also reduced effectively the development of postharvest apple decay caused by B. cinerea and Rhizoctonia root rot of moth orchid caused by R. solani .
Conclusions:  Oxyporus latemarginatus EF069 showed in vitro and in vivo fumigation activity against plant pathogenic fungi by producing 5-pentyl-2-furaldehyde.
Significance and Impact of the Study:  Oxyporus latemarginatus EF069 producing an antifungal volatile compound may be used as a biofumigant for the control of fungal plant diseases.     

中国云南巨须隐翅虫亚属的新种和新纪录(鞘翅目,隐翅虫科,巨须隐翅虫亚科)(英文)

报道中国云南巨须隐翅虫属Oxyporus Fablicius和巨须隐翅虫亚属subgenus Oxyporus的4个种,其中包括2新种,玉龙巨须隐翅虫Oxyporus (Oxyporus) yulong sp.nov.和李氏巨须隐翅虫O.(O.)lii sp.nov.,补充了仙台巨须隐翅虫O.germanus Sharp和横沟巨须隐翅虫O.transversesulcatus Bernhauer新的地理分布。     

锐孔菌属一新种

本文报道了多孔菌科(Polyporaceae)锐孔菌属(Oxyporus)一新种:长白锐孔菌(Oxyporus changbaiensis Y.P.Bai et X.L.Zeng)。本种在形态特征上与黄白锐孔菌[Oxy-porus cervino-gilvus(Jungh.)Ryv.]相近,但菌丝具有大量横隔膜,且孢子较宽;亦与宽边锐孔菌[Oxyporus latemaginatus(Dur.et Mont.)Donk]相似,但孢子较大,有时有菌盖,囊状体上部被以结晶。文中有拉丁文及中文描述。     

中国四川巨须隐翅虫亚属二新种(鞘翅目,隐翅虫科,巨须隐翅虫亚科)

报道中国四川巨须隐翅虫属Oxyporus Fablicius,巨须隐翅虫亚属subgenus Oxyporus的5个种,其中包括2新种,美姑巨须隐翅虫Oxyporus(Oxyporus) meigu sp.nov.和闫氏巨须隐翅虫O.(O.) yanae sp.nov.,补充了溪巨须隐翅虫O.riparius Zheng,横沟巨须隐翅虫O.transversesulcatus Bernhauer 和黑胸巨须隐翅虫O.nigricollis Zheng新的地理分布.     

中国四川巨须隐翅虫属一新种(鞘翅目,隐翅虫科,巨须隐翅虫亚科)

记述中国四川巨须隐翅虫属Oxyporus Fabricius 1新种,拟狭巨须隐翅虫Oxyporus(Oxyporus)simlangustatus sp.nov.,提供了它的体形、第8腹板和雄性外生殖器的彩图和线条图.这个种采自四川马边县大风顶自然保护区和峨边县黑竹沟森林公园的菌中.模式标本保存在西华师范大学生命科学学院.拟狭巨须隐翅虫,新种Oxyporus(Oxyporus)simlangustatus sp.nov.(图1～9)本种与来自四川的狭巨须隐翅虫O.(O.)angustatus Zheng很相似,但这个种前胸中线上的黑带较狭窄,后胸腹板的侧部褐黄色,雄性外生殖器中叶的端缘中部稍凹缘,以及侧叶端部仅有1根微毛,与后者有别.正模♂,四川美姑县大风顶自然保护区,2006-09-11,邱光辉采.副模1♀,四川峨边县黑竹沟森林公园,2006-08-06,采集者同上.词源:新种种名源自与狭巨须隐翅虫O.(O.)angustatus Zheng很相似.     

中国四川和宁夏巨须隐翅虫亚属的新种和新纪录(鞘翅目,隐翅虫科,巨须隐翅虫亚科)

报道中国四川和宁夏巨须隐翅虫属Oxyporus Fablicius,巨须隐翅虫亚属subgenus Oxyporus12个种.记述了 4新种,黄缘巨须隐翅虫Oxyporus aureomarginatus,北川巨须隐翅虫O.beichuanus,海螺沟巨须隐翅虫O.hailuogou和肩斑巨须隐翅虫O.humerosus.简述了1新亚种,扬氏高山巨须隐翅虫O.altus yangae的特征.首次记述了黑胸巨须隐翅虫O.nigricollis Zheng的雄性.提供了高山巨须隐翅虫Oxyporus altus Huang,Zhao et Li,仙台巨须隐翅虫O.germanus Sharp,黑腹蕈巨须隐翅虫O.humerocroceus Huang,Zhao et Li,溪巨须隐翅虫O.riparius Zheng,橘红巨须隐翅虫O.rufus(Linné),中华巨须隐翅虫O.sinicus Huang,Zhao et Li,和横沟巨须隐翅虫O.transversesrlcatus Bernhauer的新分布.所有研究标本都附有彩色整体外形图,新种和新的雄性配有特征图.     

中国四川伪巨须隐翅虫亚属四新种(鞘翅目,隐翅虫科,巨须隐翅虫亚科)

记述中国四川巨须隐翅虫属Oxyporus Fablicius,伪巨须隐翅虫亚属subgenus Pseudoxyporus 4新种,其中,半黑伪巨须隐翅虫Oxyporus(Pseudoxyporus)heminigritus sp.nov.采自巴塘县竹笆笼自然保护区;九龙伪巨须隐翅虫O.(P.)jiulongus sp.nov.采自九龙县瓦灰山和木里县;端节伪巨须隐翅虫O.(P.)parajiulongus sp.nov.采自青川县唐家河自然保护区;肖氏伪巨须隐翅虫O.(P.)xiaoae sp.nov.采自冕宁县冶勒自然保护区。新种附有彩色整体外形图,其中的2个种配有特征图。编制了中国种的检索表。     

中国巨须隐翅虫属六新种(鞘翅目,隐翅虫科,巨须隐翅虫亚科)

记述中国巨须隐翅虫属 Oxporus Fablicius 6新种,其中,刘氏巨须隐翅虫 Oxyporus(Oxporus)liuae sp.nov.,狭巨须隐翅虫O.(O.)angustatrs sp.nov.,二郎山巨须隐翅虫O.(O.)erlangshanus sp nov.和黑腹巨须隐翅虫O.(O.)atratulus sp.nov.来自四川,双带巨须隐翅虫O.(O.)bifasciarius sp.nov.和黄腿巨须隐翅虫O.(O.).femoratus sp.nov.采至云南.编制了中国已知种检索表.     

La Flora E La Vegetazione Pel Capo S. Elia (Sardegna Meridionale)

Abstract

Morphological organization of the lomasomes. — From a study on morphological organization of the lomasomes, in Avena coleoptile cells, it has been reported: 1) lomasomes form is quite variable, nevertheless, usually they resemble to a cone having a flattened tip and the base line against the cellular wall. 2) the external border of the lomasoma towards the cytoplasm is represented by the plasma membrane; such external profile results very sinuous and deep invaginations are present. 3) the internal structure is characterized by the presence of an unstructurated matrix containing spherical vescicles, flattened vescicles and tubules all showing an higher density to the electron radiations than the cytoplasmic matrix. Both vescicles and tubules are delimited by a single membrane.