The configuration anatomy of aloe lamina studies

1, the configuration anatomy research of aloe lamina

The anatomy research result that waits for a person to belong to leaf of 11 kinds of plants to Lu Hui according to Shen Zonggen, Li Jingyuan, Hu Zhenghai, make clear this to belong to a plant

Foliaceous structure by cuticular, mesophyll (absorb organization and organization of lay aside water) comprise with 1 round of vascular bundle, lay aside still has vascular bundle the 2nd round to see China aloe only inside water organization. Foliaceous surface Fu has deep corneous film, of cuticular cell outside tangential the wall is added thick, tracheal cave in, have air hole to go up, next antrum; Of the leaf on, next two sides are had arrange close together absorb Bao Bi to organize; Organization of water of central lay aside develops, occupy the 60%~80% of foliaceous cross section; The structure that there is cell of large Bao Bi to be belonged to for this inside the phloem of its vascular bundle is characteristic. The person such as Li Jingyuan thinks wood establishs Lu Hui, library to pull all alone aloe to wait to close in light organization and store the cell of small-sized Bao Bi that there is not to contain chloroplast between water organization, surrounding store organization of water thin wall, say for store water organizes scabbard. And its think vascular bundle is medium cell of large Bao Bi, vascular bundle scabbard and store water organization scabbard is the anthracene Kun such as aloin kind storage site of material, the cell of large Bao Bi of aloin content and vascular bundle, vascular bundle scabbard and store closely related the circumstance of water organization scabbard.

Anatomize observation of different Xie Ling quite according to wooden force aloe, li Jingyuan measurement of cell of large Bao Bi in thinking the wood of different Xie Ling establishs the main distinction of aloe leaf is vascular bundle is different, plant upside in the vascular bundle of young leaf and mature leaf, volume of cell of large Bao Bi is large; And the vascular bundle of plant bottom old leaf, its are large thin wall cell is atrophic already, cellular volume is minor, submit narrow form. On vascular bundle cross section, the per cent from the top down that cell of large Bao Bi occupies vascular bundle cross section to go up as Xie Ling increase and reduce, in addition, the method of applied plant anatomy such as Li Jingyuan studied wood establishs development process of Lu Hui. Study the result makes clear, xie Yuan radical is in development is inchoate its configuration is asymmetry, interior is isomorphic cell composition, but very differentiation is former skin, original shape stratification bundle lay an organization with main component. After, former cuticular development becomes skin, the 2~5 layer that is located in former skin divides growth of unripe organization cell basically to be organized into absorb Bao Bi, and be located in center to divide unripe organization basically cellular criterion development is become store Bao Bi organizes water, yo of hairdo of original shape stratification becomes vascular bundle. Again in afore-mentioned development processes, become divided of organization of cuticular, mesophyll is the earliest, vascular bundle is late, and the time with its mature development, vascular bundle is the earliest, mesophyll take second place, skin is the latest. Vascular bundle is comprised by vascular bundle scabbard, xylem, phloem and cell of large Bao Bi. Stratification of original shape of traceable of cell of large Bao Bi bundle, be located in inside bast, its growth is slow at afterbirth of sieve tube, companion, belong to the structural feature of plant leaf for Lu Hui.