云南盈江发现长嘴钩嘴鹛指名亚种

正2017年1月4日、2018年1月12日,盈江观鸟爱好者杜银磊在云南省德宏傣族景颇族自治州盈江县洪崩河流域的支流真通卡河附近的"鸟塘"(24°26′50.62″N,97°35′58.21″E,海拔636 m;24°26′54.66″N,97°36′02.42″E,海拔657 m),以及2018年3月10日徐永春在盈江县太平镇石梯村附近的"鸟塘"(24°27′17.90″N,97°33′26.53″E,     

河北省鸟类新纪录--小鸦鹃

20 0 1年 6月 15日笔者在河北省南大港湿地和鸟类自然保护区 (38°2 3′5″～ 38°33′4 4″N ,117°18′15″～ 117°38′17″E)进行鸟类资源调查时 ,于下午17:4 0左右在南大港农业发展公司大院西侧的榆树 (Uimuspumila)上发现一只体长约 4 0cm的鸟 ,体似鸦 ,尾似鹊。在距其约     

西藏达孜县发现灰椋鸟

正2016年12月29日,在拉萨河沿岸的达孜县唐嘎乡湿地(29°50′12.68″N,91°33′31.74″E,海拔3 760 m)发现11只体型中等(体长约22~25 cm)的灰色椋鸟。其头黑,头侧具有白色纵纹,喙黄色,尖端黑色,跗跖和趾为暗橘黄色,腹部比背部灰色略浅,臀部偏白(图1)。经鉴定,该鸟为雀形目(Passeriforms)椋鸟科(Sturnidae)     

甘肃省鸟类新记录——黑浮鸥

2021年6月12日,在甘肃省张掖市张掖国家湿地公园东侧入口附近进行鸟类调查时,于毗邻省道S301的浅水沼泽区(100°27′57.81″E,39°59′27.21″N,海拔1405 m)发现2对体色近黑色的鸥科Laridae鸟类,并拍摄到其孵卵的清晰照片(图1).     

江苏省连云港发现黑冠■

正2019年3月29日16时左右在江苏省连云港市海滨公园(34°44′52″N,119°21′55″E,海拔13 m)发现1只体型略小的鹭科鸟类(图1)。该鸟头顶及羽冠黑色,脸部栗褐色,上体暗棕栗色带黑色蠹状纹;下体喉白、中部     

西藏墨脱发现栗苇鳽

2016年5月2日在墨脱县县城附近湿地(29°19′43.18″N,95°20′03.40″E,海拔1035 m),观察记录到苇鸦属(lxobrychus)鸟类1只。发现时,该鸟位于草丛中的一条小溪边,短暂停留,然后迅速藏匿于草丛中。5月3日再次到该位置观察,发现该鸟仍在该区域活动,并由草丛飞至蕨类植物上做短暂停留后,飞至草丛中藏匿。     

彩鹮在甘肃省的新分布记录

2021年10月13日,在甘肃张掖黑河湿地国家级自然保护区大湖湾湿地(99°44′48. 23″E,39°24′10. 60″N)开展鸟类生物多样性监测过程中,于16:40 发现1只体长45 cm左右的湿地鸟类,该鸟翼展85 cm左右,体羽深栗色,带绿色闪光,喙长且弯,脸部裸露,皮肤和眼圈铅色.     

西藏墨脱发现棕腹隼雕

正2019年4月15日在西藏林芝市墨脱县墨崩公路段(95°13′23″E,29°16′02″N,海拔800 m)、4月18日在波墨公路80k附近(95°29′28″E,29°39′33″N,海拔2 097 m)分别发现1只棕腹隼雕(Lophotriorchis kienerii)亚成体,并拍摄到其中1只的照片(图1)。该鸟具有白色的眉纹,深色的过眼纹向后延伸至后颈,脸颊、颈侧和喉部白色,翅形宽大,初级飞羽基部腹面有较明显的深色条带,尾黑褐色具黑色     

河北张家口康巴诺尔湖国家湿地公园遗鸥繁殖群新发现

2014年4月14日在张家口市康保县康巴诺尔湖国家湿地公园(东经114°35′06″~114°36′32″,北纬41°49′05″~41°50′33″)发现遗鸥(Larus relictus)3 000余只。同年7月在湖边发现新繁殖的遗鸥幼鸟觅食。2015年4月底发现遗鸥在湖心岛筑巢产卵,同年6月采用国产大疆精灵3四轴航拍飞行器航拍法及样方法统计湖心岛遗鸥种群数量,共记录遗鸥成鸟2 100余只,806巢,出壳雏鸟2 080只。此次发现属于我国遗鸥繁殖地的新发现。     

陕西省鸟类新记录——文须雀

2018年5月25-29日进行陕西省榆林地区鸟类监测时,在陕西省红碱淖国家级自然保护区(109°53′33″E,39°04′26″N,海拔1220 m)观察到15只文须雀Panurus biarmicus,其中,雄性成鸟2只,幼鸟13只。用Kowa双筒望远镜(10×42)观察,Canon EOS 7DⅡ和100~400 mm变焦镜头相机拍照(图1、图2),该鸟嘴黄色,脚黑色,上体棕黄色,翅黑色具白色翅斑,尾甚长。     

Heterologous transformation ofClaviceps purpurea

Summary A transformation system based on dominant selection markers was established for an industrialClaviceps purpurea strain. Transformants could be obtained by using plasmid pAN 7-1 carrying a bacterial gene for hygromycin (hph) resistance fused to a fungal promoter or by plasmid p3SR2 which carries the acetamidase gene (amdS) fromAspergillus nidulans.     

Flavonoids from Echinacea purpurea

Two compounds, nicotiflorin and rutin, are isolated and idenitified from flowers of Echinacea purpurea (L.) Moench., of the family Asteraceae, cultivated in Samara oblast. It is established that nicotiflorin (3-O-rutinoside campherol) is the dominant flavonoid of Echinacea purpurea; it is described along with rutin for the first time for this plant, cultivated in the Russian Federation and CIS countries.     

Further amides from Echinacea purpurea

The aerial parts of Echinacea purpurea afforded, in addition to known compounds, five further highly unsaturated amides and a derivative of linolen     

Proline accumulation inTephrosia purpurea pers

Tephrosia purpurea Pers. was found to accumulate high proline content in dry habitat. The proline content was higher in shoots, especially in leaves, than in roots. Pod walls and young seeds showed the highest proline content. The proline content of young leaves was higher than that of mature and old leaves. During leaf senescencein vitro proline content increased rapidly upto 6 h and further decreased in leaves as well as in leachate. High proline content seems to be positively related with ‘survival capability’ of this plant.     

Pathogen-induced systemic resistance in Ipomoea purpurea

Infection of Ipomoea purpurea by anthracnose, the disease caused by the fungal pathogen Colletotrichum dematium, increases resistance to subsequent infections on previously uninfected leaves. Fungal isolates varied in their levels of virulence but not in the extent to which they induced resistance. Induced resistance was equally effective against all isolates tested. Plant lines varied in the baseline level of resistance expressed in newly emerging leaves. In some lines, new leaves were poorly defended but developed resistance with maturity, even in the absence of infection. In those lines, induced resistance could not prevent anthracnose damage to young leaves, and this damage reduced plant fitness by increasing juvenile mortality and decreasing juvenile growth rates. In contrast, anthracnose damage to well-defended older leaves had no effect on juvenile growth rates. In at least one line, new leaves were well-defended, regardless of disease experience. This line did not experience reduced growth from anthracnose infection of either young or mature leaves, suggesting that lines with higher baseline levels of resistance are more fit than those dependent upon induced resistance. These results suggest that induced resistance cannot substitute for baseline local resistance in this I. purpurea population.     

Agrobacterium rhizogenes-mediated transformation of Echinacea purpurea

Summary Echinacea purpurea seedlings were inoculated with several Agrobacterium rhizogenes strains in order to obtain hairy roots. Infection with A. rhizogenes strains LMG63 and LMG150 resulted in callus formation. Upon infection with strains ATCC 15834 and R1601 hairy roots were obtained. Opine detection confirmed transformation of E. purpurea. Comparative HPLC fingerprint analysis of the alkamides from natural plant source, control tissues, and transformed callus and roots indicated that transformed callus and hairy roots might be a promising source for continuous and standardized production of the dodeca-2E,4E,8Z,10E/Z-tetraenoic acid isobutylamide and related amides.Abbreviations HPLC high-pressure liquid chromatography - MS Murashige and Skoog culture medium     

Microcycle speculation in theClaviceps purpurea 244

The mutant strainClaviceps purpurea 244 forming hyphae composed mainly from sclerotiumlike cells was found to sporulate both in liquid and solid media, particularly in the form of terminal chlamydospores (4.0 × 6.5 μm). Chlamydospores produced during submerged cultivation germinated, new chlamydospores being formed directly from germ tubes, or, occasionally, conidia (the so-called microcycle) or new vegetative mycelium were formed. The ultrastructures of the chlamydospores and vegetative cells was identical. The cytoplasm was filled with ribosomes and contained lipid inclusions and vacuoles with membrane invaginations. Strain 244 cultivated under submerged conditions produced 150 μg/ml clavins, with elymoclavin predominating (82 %). The parent strainClaviceps purpurea 129 only produced chlamydospores on the vegetative mycelium, whereas no microcycle was detected; under submerged conditions it produced mainly agroclavin (85 %) at a concentration of 4 mg/ml.