| 1. | Thin - walled cells of cortex and pulp are rich in rhaphides
皮层和髓中的薄壁细胞富含针晶。 |
| 2. | Thin - walled cells of callow stirpe ' s cortex contain saliferous vacuoles , and pulp cells contain crystals
幼茎皮层薄壁细胞中含有含盐液泡泡，髓细胞中含有晶体。 |
| 3. | Each lobe contains two pollen sacs that produce very large quantities of small pollen grains
左右两侧花粉囊之间是薄壁细胞构成的药隔，药隔中的维管束与花丝维管束相连。 |
| 4. | R ays e ntirely p arenchymatous , u ni - serate ; h orizontal a nd t angential w alls o f r ay c ells a re smooth and thin
木射线单列全由射线薄壁细胞组成；射线细胞水平壁薄；端壁薄，平滑。 |
| 5. | Rays entirely parenchymatous , uni - serate ; horizontal and tangential walls of ray cells smooth and thin . cross - field pitting taxodoid with 1 - 4 pits
木射线单列，全由射线薄壁细胞组成；射线细胞水平壁薄，纹孔缺乏，端壁平滑。 |
| 6. | The cells of the bundle sheath that surround the vascular tissues are large and contain specialized elongated chloroplasts that do not contain grana , but form starch grains
它的特点为：围绕在维管组织外层的维管束薄壁细胞较大，并含有较大的叶绿体，这些叶绿体中不含基粒，但形成淀粉粒。 |
| 7. | They are common in many situations , for example as gland cells and epidermal cells , and in xylem and phloem parenchyma , where they are concerned with active loading and unloading of vessels and sieve tubes
许多情况下都有传递细胞发挥作用，例如：腺细胞和表皮细胞，还有木质部和韧皮部的薄壁细胞，该处导管和筛管的主动装填和排空都与传递细胞有关。 |
| 8. | We have observed the following characteristics of anatomical structure and development : ( 1 ) the primary roots belong to archetype and the lateral roots occur in the position toward the xylem of the vascular cylinder ; ( 2 ) the root endodermis consists of thicken casparian strips , and there are from two lo four layers parenchyma cells near the pericycle ; ( 3 ) the pith and resins canals are absent in the toots ; ( 4 ) secondary structure occurs in the root hair zone , and vascular cambium is formed from the parenchyma cells between the primary xylem and primary phloem ; ( 5 ) tanning materials are abundant in pericycle cells and phelloderm cells ; ( 6 ) sclereids are found in secondary phloem , and rays are rather rich in secondary xylem
结果表明：气生不定根具有以下结构特征和发育特点： ( 1 )根为二原型，侧根正对着木质部发生； ( 2 )幼根内皮层细胞具凯氏带加厚，维管柱内紧挨中柱鞘内侧具有2 ~ 4层大型薄壁细胞； ( 2 )根中无髓和树脂道； ( 4 )次生结构发生于根毛区，维管形成层由初生木质部和初生韧皮部之间的薄壁细胞转化形成； ( 5 )中柱鞘和栓内层细胞富含单宁类物质； ( 6 )次生韧皮部有石细胞，次生木质部射线发达。 |
| 9. | 8 the pith made of small parenchyma cells was long - oval , however the pith looked like a cross which devided the preliminary xylem into four parts was made of larger parenchyma cells . 9 there are well - developed aerenchyma in suaeda salsa , including large sub - stomatal chambers and intercellular spaces in palisade layer , spaces produced by lysigenous breakdown of cortical cells in stem and roots
侣）髓在对照中仅由有限数目的较小的薄壁细胞构成，髓的形状表现为长椭圆形， 50 、 100 、 200 、 400inmnaci处理下，髓中的薄壁细胞较大，细胞数目较多，髓呈“十”字形，将初生木质部分割为四部分，这一特殊现象在前人的工作中尚未报道。 |
| 10. | 7 - 10 days " seedlings after the seeds germinated , the meristem in the stem apex functioned to form true leaf primordium , meanwhile , the vessel elements which differentiated from parenchymatous cells of the middle and upper portion of the cnz connected with the vessel elements from procambium of epcotyl - shoot region
种子萌发7 - 10天，幼苗的茎端分生组织活动形成真叶雏形，此时由子叶节区中、上部薄壁细胞的转分化形成的导管分子与上胚轴-苗区原形层形成的导管分子发生连接。 |
