The extrafloral nectaries in Cerasus plants located on the base of the petiole or edge of the blade, and belonged to stalk nectries. The nectaries consisted of epidermis, nectariferous cells and vascular bundle.

結(jié)果表明，櫻屬植物花外蜜腺位于葉柄基部或葉片邊緣處九色最新地址，屬于莖軸蜜腺，是由條狀紋飾的分泌表皮、產(chǎn)蜜組織和維管束構(gòu)成无码最新首页。

This suggests that the cytological changes in sieve element and nectariferous tissue are closely associated with the nectary functional activities.

這反映了蜜腺發(fā)育過(guò)程中篩分子和蜜腺組織的細(xì)胞學(xué)變化是與蜜腺的生長(zhǎng)、發(fā)育和生理功能的完善聯(lián)系在一起的一级a毛片免灵靠看久久精品。

The three species shared a few common features in the palisade-like epithelial cells, vascular supplies, and nectary openings. However, they showed some differences in longitudinal section and transectinal outline.

這3種植物花蜜腺的柵欄狀表皮細(xì)胞人人爽人人做、維管束和蜜腺開(kāi)口方式相似，而從縱切面和橫切面上觀察其結(jié)構(gòu)存在一些差異黄色视频一区二区观看。

The nectary and nectariless bulkswere constructed by DNA of ten nectary individuals and ten nectarilessindividuals in the F_2 through using BSA method.

6用SSR引物對(duì)無(wú)蜜腺品種97014和有蜜腺品種TM-1進(jìn)行篩選激情小说套图，共篩選出在兩品種間擴(kuò)增差異的引物10對(duì)。

The results showed that the nectaries were not upgrowth, no obvious shaped nectaries and they were just gland cells and secretory cavities. Nectary cells were at the receptacle surface which was at the bases of the furthest outside gynoecia.

結(jié)果表明欧美精品黄一区，慈姑雌花蜜腺不很發(fā)達(dá)久久99精品久久久久久nb，無(wú)明顯的成形蜜腺，僅存在腺細(xì)胞及分泌道很在线视频无码一二三四区，腺細(xì)胞位于最外輪雌蕊基部的花托表面黄色A级毛片网站网址，由腺細(xì)胞構(gòu)成腺表皮，屬于花托蜜腺狼友在线精品视频网站。

The results are as follows:(1) The morphological investigation indicated that the nectaries werelacked on the main nervation, calyx and bract of cotton line 97014 comparedwith TM-1. Alveolate hollow was absent at main nervation of the mature leaf.Results of cytological analysis showed that 97014 lacked nectariferous structure.Where nectary inserted were parenchyma cells, cupped structure and brownnectariferous substance on the lower epidermis were not found.

主要研究結(jié)果如下：(1)以棉花無(wú)蜜腺品種97014與有蜜腺棉花遺傳標(biāo)準(zhǔn)系TM-1為材料黄片一级片免费看，進(jìn)行形態(tài)學(xué)比較研究，結(jié)果表明棉花無(wú)蜜腺品種97014葉片中脈欧美三级黄色网站、花萼和苞葉上都缺少蜜腺欧美视频在线一区二区三区，成熟葉片葉脈、花萼和苞葉上均無(wú)蜂窩狀凹陷十八岁黄片；組織與細(xì)胞切片觀察發(fā)現(xiàn)十八禁视频网站，97014缺少蜜腺組織結(jié)構(gòu)，在蜜腺著生處為排列整齊的薄壁細(xì)胞9AV在线观看视频，且在下表皮看不到凹陷的組織結(jié)構(gòu)和褐色的蜜腺分泌物国产黄色视频在线免费播放。

Leaves simple, alternate, sometimes fascicled on short branchlets, conduplicate when young; petiole usually with 2 nectaries or sometimes nectaries at base of leaf blade margin; leaf blade margin often serrate.

有托葉。單葉亚洲一级性交大片，交替2020人人操人人摸，有時(shí)由短開(kāi)出的簇生小枝，幼時(shí)日韩偷窥自拍系列视频在线；葉柄通常具2蜜腺或有時(shí)蜜腺在基部的葉片邊緣多人作爱一级黄片；葉片邊緣通常有鋸齒超碰在线97在线。

Leaves simple, alternate or fascicled on short branchlets, conduplicate when young; petiole usually with 2 apical nectaries or nectaries sometimes at base of leaf blade margin; leaf blade margin singly or doubly serrate, rarely serrulate.

單葉，交替或在上在线观看很黄很水的视频网站，對(duì)折幼時(shí)国产免费黃色视频；有時(shí)的葉柄通常具2頂端的蜜腺或蜜腺葉片邊緣的在基部；單個(gè)的葉片邊緣或重鋸齒姐姐直播App，很少有細(xì)鋸齒亚洲欧美日韩黄色视频。

The cotton plant without nectariferous structure in leaves and flowers,named nectariless cotton, is suffered from fewer plant diseases and insect pestsfor lack of nectaries and honeydew.

棉花無(wú)蜜腺性狀表現(xiàn)為棉株葉片和花無(wú)蜜源分泌組織結(jié)構(gòu)，缺少蜜腺和蜜汁羞羞漫画官方网站在线观看。

Its cytoplasm were denseness and the karyons were big. It was speculated that the nectaries of Sagittaria triforia were degenerated from androeciums.

根據(jù)其蜜腺的位置及結(jié)構(gòu)欧美成人网1314WWW，可以推測(cè)其蜜腺可能是由花的雄蕊退化而成的。