文冠果(Xanthoceras sorbifolia)研究进展

综述了文冠果 (XanthocerassorbifoliaBunge .)的落花落果、雄性不育、遗传变异、快繁及药用等方面的研究进展。认为造成文冠果“千花一果”的生理原因可能在于树体营养不足 ;导致雄性不育的主要原因可能在于花药难以开裂散粉 ,其次才是花粉败育 ;文冠果花瓣等突变体的发现及体细胞胚培养成功 ,为优选、快繁新品种及研究木本植物的各个器官的形态建成分子机理等提供了条件 ,但文冠果的资源在逐年减少 ,有待尽快加以保护和利用 ;文冠果的药用价值尚有待国内深入系统地研究     

肉疣衣属地衣(子囊菌门)二新记录种

Thallus crustose, yellowish-gray, yellowish-white or cream-colored, covering areas of moss, thin to thick, sometimes very thick especially at the center, continuous, forming patch of coarse, irregular, granulose isidia, which connect into broad granular areas ; prothallus absent. Apothecia: sessile, 1.5~2.5mm in diameter; disks pale to light yellowish pink, lightly white pruinose, at first sunken and smooth, later with even, inner margin or ring adjacent to the disk, and a coarsely granulose o…     

中国鸡皮衣属地衣一新记录种

在对保存于中国科学院微生物所菌物标本馆(HAMAS-L)的鸡皮衣属地衣进行研究过程中,发现一中国新记录种亚澳鸡皮衣(Pertusariathwaitesii)。该种地衣体灰白色至烟灰色,表面有皱褶,缝裂成网块状,无粉芽和裂芽;果疣半球形,顶部扁平,孔口较多,轻微下陷;子囊盘陷生于果疣中,每个子囊含有2个孢子,孢子长椭圆形,孢子壁双层,端壁微加厚;皮层含有地衣黄,在波长365 nm紫外光照射下呈现红褐色,髓层含有原岛衣酸。该种与海滨鸡皮衣(P.subobductans)和亚孔鸡皮衣(P.subpertusa)都含有2个长椭圆形的孢子,但是海滨鸡皮衣含有降斑点酸,皮层遇KOH由黄色变成红色;而亚孔鸡皮衣含有富马原岛衣酸,且孢子较大。亚澳鸡皮衣生长在海拔1 200~2 300 m的阔叶树树皮上。     

中国藓类植物一新记录种——木何兰小石藓

报道了木何兰小石藓（Weissia muhlenbergiana）为中国新记录种,提供了该种详细的特征描述和显微照片以及孢子电镜扫描照片,同时比较了该种与属内近似种类的异同。     

热激蛋白90在植物发育和疾病抗性中的作用

相对分子质量90000的热激蛋白（heatshock protein,HSP90）是真核细胞必需的分子伴侣。拟南芥中HSP90有7个成员,其中AtHSP90-1、AtHSP90-2、AtHSP90-3和AtHSP90-4组成细胞质亚族;AtHSP90-5、AtHSP90-6、AtHSP90-7分别位于叶绿体、线粒体和内质网。HSP90分子伴侣复合物在植物发育和对外部刺激应答中非常重要,尤其是在抗性（resistance R）蛋白介导的抵抗病毒侵入的过程中起重要作用。     

甘肃白龙汀流域肉疣衣科地衣研究

1 INTRODUCTION Bailong River valley is situated in the south of Gansu Province and northeast of Qinghai-Tibet Plateau at longitudes of 101°40'-105°20' E and latitudes of 32°21'-35°50' N.The mean annual precipitation is 448.9-911.6ram and the mean annual temperature 4.7℃-12.7℃.The drainage area has an elevation from 550m to 4920m.The complex habitats give rise to a variety of forest communities and varied patterns of ecosystems.     

中国棒瑚菌属地衣的研究

<正>1 INTRODUCTION The genus Multiclavula R.H. Petersen is a member of the family Clavariaceae belonging to Agaricales in Basidiomycota. The Multiclavula was erected by Petersen (1967), who segregated it from Lentaria based on unbranched basidiomata of small size usually lichenized with algae.