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Primulina bullata, a new species of Primulina  (Gesneriaceae) from Guangxi

广西报春苣苔属一新种——泡叶报春苣苔



全 文 :广 西 植 物 Guihaia Jan.2013,33(1):42-45           http://journal.gxzw.gxib.cn 
DOI:10.3969/j.issn.1000-3142.2013.01.006
陆仕念,符龙飞,梁桂友,等.广西报春苣苔属一新种———泡叶报春苣苔[J].广西植物,2013,33(1):42-45
Lu SN,Fu LF,Liang GY,et al.Primulina bullata,a new species of Primulina(Gesneriaceae)from Guangxi[J].Guihaia,2013,33(1):42-45
广西报春苣苔属一新种———泡叶报春苣苔
陆仕念1,符龙飞2,3,梁桂友3,温 放3*
(1.靖西县林业局 林业种苗试验站,广西 百色533800;2.广西师范大学,广西 桂林541002;
3. 广西壮族自治区
中 国 科 学 院
广西植物研究所,广西 桂林541006)
摘 要:报道了分布于广西石灰岩山地及岩溶洞穴的苦苣苔科Gesneriaceae报春苣苔属Primulina Hance一新
种———泡叶报春苣苔P.bullataS.N.Lu &Fang Wen。泡叶报春苣苔与荔波报春苣苔P.liboensis(W.T.Wang
&D.Y.Chen)Mich.Mler &A.Weber和桂林报春苣苔P.gueilinensis(W.T.Wang)Y.Z.Wang相近,以叶两面
均具直立柔毛,叶上面呈显著泡状,具较多花序,(1)2~9条,花序梗较长,(4.0)8.5~15cm,苞片线形或线状披
针形,大小为7mm×1mm,花大,长4.2~5.3cm,粉紫色,退化雄蕊较长,13~15mm,花期在11月而区别。
关键词:报春苣苔属;广西;苦苣苔科;泡叶报春苣苔;新分类群
中图分类号:Q949  文献标识码:A  文章编号:1000-3142(2013)01-0042-04
* Primulina bulata,a new species of Primulina
(Gesneriaceae)from Guangxi
LU Shi-Nian1,FU Long-Fei 2,3,LIANG Gui-You3,WEN Fang3*
(1.Forestry Seedlings Experiment Stations of Forestry Bureau of Jingxi County,Baise 533800,China;
2.Guangxi Normal University,Guilin 541006,China;3.Guangxi Institute of Botany,Guangxi
Zhuang Autonomous Region and the Chinese Academy of Sciences,Guilin 541006,China)
Abstract:A new species,Primulina bullata S.N.Lu &Fang Wen,which grows in limestone hils and limestone caves
from Guangxi is described and ilustrated.It is similar to P.liboensis(W.T.Wang &D.Y.Chen)Mich.Mler &A.We-
ber and P.gueilinensis(W.T.Wang)Y.Z.Wang,but difers above-mentioned two relatives by having erect pubescence on
both leaf blade surfaces,upper surface of leaf blade with distinctly rounded,bulate projections,(1)2-9or more cymes,
longer peduncle,(4.0)8.5-15cm,linear or linear-lanceolate bracts,ca.7mm×1mm,larger flower,4.2-5.3cm long,
purplish-pink corola,staminodes longer,13-15mm long,flowering time in November.
Key words:Primulina;Guangxi;Gesneriaceae;P.bullata;new species
  原唇柱苣苔属Chirita Buch.-Ham.ex D.Don是
一个以我国华南、西南为分布中心的苦苣苔科Gesne-
riaceae大属,我国分布有3个组,即唇柱苣苔组sect.
Gibbosaccus,麻叶唇柱苣苔组sect.Chirita和钩序唇
柱苣苔组sect.Microchirita(王文采,1990;王文采等,
1998;李振宇等,2004;韦毅刚等,2010)。然而在2011
年对该属的修订中,原唇柱苣苔组以及文采苣苔属
Wentsaiboea D.Fang &D.H.Qin(仅其中的2个种文
采苣苔W.renifolia D.Fang &D.H.Qin和罗城文采
苣苔W.luochengensis Yan Liu & W.B.Xu)(Liu et
al.,2010)以及唇柱苣苔组的近缘类群———小花苣苔
属Chiritopsis W.T.Wang被并入我国的一个特有单
* 收稿日期:2012-05-29 修回日期:2012-08-25
基金项目:广西自然科学基金(2011GXNSFB018050);广西植物研究所博士课题启动基金(桂植业11003);中国科学院西部之光人才培养计划项目
作者简介:陆仕念(1965-),男(壮族),广西靖西县人,助理工理师,从事自然保护区管理、林业和保护区物种等研究,(E-mail)459817316@qq.com。
*通讯作者:温放,博士,(E-mail)wenfang760608@139.com,wenfang0608@139.com。
图1 泡叶报春苣苔 (新种) A.开花植株;B.花冠展开,示雄蕊与退化雄蕊;C.雌蕊与花萼;D.柱头。(林文宏 绘)
Fig.1 Primulina bullata S.N.Lu &Fang Wen,sp.nov. A.Habit in flowering;B.Corola opened with stamens and staminodes;
C.Pistil and calyx;D.stigma.(Drawn by LIN Wen-Hong)
型属———报春苣苔属Primulina Hance内,钩序唇
柱苣苔组被提升为钩序苣苔属 Microchirita(C.B.
Clarke)Y.Z.Wang,而原麻叶唇柱苣苔组中大部分
的种以及另一个单型属,密序苣苔属 Hemiboeopsis
W.T.Wang被并入汉克丽亚花属汉克丽亚花组
Henckelia Spreng.sect.Henckelia中,少数种则并
入一 个 重 新 恢 复 的 属———Damrongia Kerr ex
Craib之中,而原唇柱苣苔属中的sect.Liebigia也
被提升为属,即Liebigia Endl.(Wang et al.,2011;
Weber et al.,2011)。
广西是原唇柱苣苔属唇柱苣苔组,如今的报春
苣苔属的主要分布中心,但该属除了少数种,如蚂蝗
七 Primulina fimbrisepala(Hand.-Mazz.)Y.Z.
Wang、牛耳朵P.eburnea(Hance)Y.Z.Wang、神农
架报春苣苔P.tenuituba(W.T.Wang)Y.Z.Wang
等之外,绝大部分为狭域分布的物种,常仅见于一两
个石灰岩山地山头或岩溶洞穴。作者近几年关注于
广西石灰岩山地以及石灰岩岩溶洞穴的苦苣苔科植
341期         陆仕念等:广西报春苣苔属一新种———泡叶报春苣苔
图2 泡叶报春苣苔 A.生境;B.开花植株;C.花正面观;D.花序;E.花与雌蕊;F.花冠解剖。
Fig.2 Primulina bullata S.N.Lu &Fang Wen,sp.nov. A.Habitat;B.Plants with flowers;C.Frontal view of flowers;
D.Cyme;E.Flower and pistil;F.Corola opened.
表1 新种泡叶报春苣苔、荔波报春苣苔和桂林报春苣苔的区别特征比较
Table 1 Detailed comparison between Primulina bullatasp.nov.,P.liboensis and P.gueilinensis
Characters  P.bullata  P.liboensis  P.gueilinensis
Leaves blade shape  Obliquely ovate,eliptic to
broadly oblong-ovate
Inconspicuous obliquely eliptic
to ovate
Narrowly eliptic to rhombic-el-
liptic or ovate
Leaves blade size(cm) (5)11-13.5×(3.5)7-9.5  4-10×2-4.5  2.5-7.5×1.4-4or larger
Hairs on both leaf blade surfaces  Short puce strigose  Sparsely glandular-puberulence  Densely puberulent,eglandular
Upper surface of leaf blade  Distinctly bulate  Inconspicuously bulate  Smooth
Cymes (1)2-9or more  ca.2  1-4
Peduncle length(cm) (4.0)8.5-15 ca.12  1.5-6
Hairs on the peduncle  With erect white pubescence  With purple pubescence  Densely spreading puberulent
Bracts shape and size  Linear or linear-lanceolate,ca.
7mm×1mm
Linear-ovate,13-20mm×3.
5-5.0mm
Linear to narrowly eliptic or
narrowly triangular,2-14
mm×0.3-1.5mm
Corola color  Purplish-pink  Bluish-purple  Purple
Corola size  4.2-5.3cm long  ca.2.7cm long  4-6cm long
Hairs on the corola  Outside sparsely short pur-
plish red strigose along the
back of corola,glabrous inside
Outside puberulent,inside pu-
berulent on limb
Outside puberulent,inside pu-
berulent only on adaxial lip
Filaments  Glabrous  Glandular-puberulent  Glabrous
Staminodes  2,13-15mm long  2,ca.3mm long  2,5.5-7mm long
Flowering time  November  May March to April
44 广 西 植 物                  33卷
物的研究,在对这一特殊的,分布于极为狭窄的区域
的该类群植物进行详细的野外考察过程中,在广西
境内的石灰岩山地林下、岩溶洞穴分别采集到许多
该科植物的标本,其中部分当时被鉴定为未详知种。
在对这些植物进行充分和长时间的野外定点观察和
生物学性状调查,我们发现其中分布于靖西县(百色
市)一个报春苣苔属物种在相关的苦苣苔科植物文
献与专著中(王文采,1990;Wang et al.,1998;李振
宇等,2004;韦毅刚等,2010;Liu et al.,2010,2011;
Xu et al.,2010;Tang & Wen,2011;Weber et al.,
2011;Wu et al.,2011;Xu et al.,2010,2011)均无
记载,是未被描述的新分类群。
  泡叶报春苣苔 新种 图1
Primulina bulata S.N.Lu & Fang Wen,sp.
nov.Fig.1 &2.
It difers from Primulina liboensis(W.T.Wang
&D.Y.Chen)Mich.Mler &A.Weber and P.guei-
linensis(W.T.Wang)Y.Z.Wang(Table 1)having e-
rect pubescence on both leaf blade surfaces,upper sur-
face of leaf blade with distinctly rounded,bulate pro-
jections,(1)2-9or more cymes,longer peduncle,
(4.0)8.5-15cm,linear or linear-lanceolate bracts,ca.
7mm×1mm,larger flower,4.2-5.3cm long,pur-
plish-pink,staminodes longer,13-15mm long,late
flowering time in Nov.
  Perennial herbs.Rhizome subterete,1.5-3.5cm
long or longer,1.0-1.5cm in diameter.Leaves 6-
12or more,al basal,three leaves verticilate;petiole
compressed,cross section semi-eliptic,2-7.5cm
long,0.6-1.1cm wide,short puce strigose on both
surfaces;blades dark-green,coriaceous or stifly charta-
ceous,obliquely ovate,eliptic to broadly oblong-ovate,
left-right asymmetric or symmetric,(5)11-13.5cm×
(3.5)7-9.5cm,upper surface distinctly bulate,cune-
ate at base,commonly symmetric,occasionaly oblique,
margin with 15-25crenation on each side,acuminate,
obtuse or round at apex,with erect pubescence on both
surfaces,margins with tricholoma,pubescence 0.5-1
mm long,al veins commonly silvery white,lateral
veins 4-5on each side,impressed adaxialy and prom-
inent abaxialy.Cymes axilary,(1)2-9or more,1-
2-branched,(1)3-9or more flowers on one cyme;pe-
duncle(4.0)8.5-15cm long,slender,(1.5)1.9-2.2
mm in diameter,erect white-pubescent;bracts 2,oppo-
site,purplish green,linear or linear-lanceolate,ca.7×1
mm,margin entire,obtuse at apex,appressed purple-
pubescent outside,glabrous inside.Bracteoles 2,oppo-
site,shape,hairs and colour the same as bracts but apex
acute.Pedicel 6-11mm long,calyx 5-parted near to
the base,lobe narrowly lanceolate-linear,8-11×2-
2.5mm,margin entire,acute at apex,appressed white
pubescent outside,glabrous inside.Corola 4.2-5.3
cm long,nearly glabrous outside,but sparsely short
purplish red strigose along the back of corola,glabrous
inside;tube funnel-formed,purplish-pink,2.5-3.0cm
long,0.8-1.2cm in diameter in medium,1.2-1.5
cm in diameter at the orifice;throat with two yelow
lines;limb distinctly 2-lipped,purple or purplish pink,
adaxial lip 2-lobed to or over the middle,lobes ovate or
nearly orbicular,0.9-1.1cm×ca.0.9cm,obtuse at
apex,with two deep purple lines inside;abaxial lip 3-
lobed over the middle,two lateral lobes inapparently
obliquely ovate or oval,the central one oblong,12.5-
15mm×10.5-12mm,rounded at apex.Stamens 2,
adnate to 1.2-1.5cm above the base of the corola
tube;filaments geniculate near the base,1.3-1.5cm
long,glabrous;anthers subreniform,slightly contracted
in the middle,3.5-4.5mm long,glabrous.Stamin-
odes 3,lateral ones 6.5-8.0mm long,glabrous,
adnate to 12-15mm above the base of the corola
tube,middle one ca 0.5mm long,adnate to ca.3-4
mm above the base of the corola tube.Disc annular,
1.0-1.5mm high,margin repand or entire.Pistil 2.8
-2.9cm long,ovary linear,ca.2.3cm long,ca 1.4-
2.0mm in diameter,glandular-pubescent;style ca.5-
6mm long,nearly glabrous;stigma obtrapeziform,
ca.2 mm long,apex 2-lobed.Capsule not seen.
Flowering in Nov.
  China(中国),Guangxi(广西):Jingxi County
(靖西县),Hurun Town(湖润镇),From Da’ai vil-
lage to Dongba vilage(从达爱村到东巴村途中),on
the moist rock face near to road and at the entrance
of limestone caves,rare,526 ma.s.l.,09Oct.
2010,Fang Wen & S.N.Lu WFBCJT11110901
(holotype:IBK;isotype:BJFC).
(下转第81页Continue on page 81)
541期         陆仕念等:广西报春苣苔属一新种———泡叶报春苣苔
pGADT7-EcoRI-139-OsRUS2.1 cDNA-879-BamH1,
pGADT7-EcoRI-880-OsRUS2.1cDNA-1317-Bam 和
pGADT7-EcoRI-1-OsRUS2.1cDNA-1317-BamHI四
种猎物蛋白表达载体,这些工作将为下一步研究Os-
RUS1和OsRUS2是否具有相互作用以及通过什么区
域互作奠定基础。由于某些蛋白的表达可能对酵母
细胞产生毒害作用,使其不能在选择培养基上生长;
以及一些蛋白含有酸性氨基酸区域或者能够与酵母
宿主转录激活因子结合,从而直接激活报告基因的表
达。因此在筛选前需验证诱饵载体的毒性与自身激
活作用,用以排除假阳性和假阴性的相互作用。本研
究采用含上述重组猎物表达载体的Y187摇菌培养,
OD600全部能在19h以内达到0.8,说明表达的Os-
RUS2.1及其片段对酵母的生长无毒性;对LacZ和
MEL1报告基因活性染色表明,OsRUS2.1及其片段
也不能激活酵母的转录系统。综上所述,构建的四个
OsRUS2.1猎物蛋白表达载体表达的融合蛋白对宿
主菌Y187无毒性,且无自激活作用,可应用于后续的
酵母双杂交实验。
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(上接第45页Continue from page 45)
  本种与荔波报春苣苔Primulina liboensis(W.T.
Wang &D.Y.Chen)Mich.Mler & A.Weber和桂
林报春苣苔P.gueilinensis(W.T.Wang)Y.Z.Wang
在亲缘关系上相接近,但叶两面均具直立柔毛,叶上
面呈显著泡状,具较多花序,(1)2~9条,花序梗较长,
(4.0)8.5~15cm,苞片线形或线状披针形,大小为7
mm×1mm,花大,长4.2~5.3cm,粉紫色,退化雄蕊
较长,13~15mm,花期11月,可以区别(表1)。
致谢 承蒙林文宏先生为本文绘图,在此表示衷
心的谢意!
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181期    潘家强等:OsRUS2.1酵母双杂交猎物载体的构建及其细胞毒性和自激活作用检测