숙주식물에 침입한 기생피자식물 새삼(Cuscuta japonica Choisy) 흡기(吸器)의 발달과 미세구조

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The development and ultrastructure of the endophyte in the parasitic angiosperm Cuscuta japonica Choisy growing within the host plant Impatiens balsamina L. was studied with light and electron microscopy. The endophyte consisted of mainly vacuolated parenchymatous axial cells and elongate peripheral cells. The peripheral cells had large nuclei and a dense cytoplasm including abundant cellular organelles. It was suggested that the elongate peripheral cells are metabolically very active. These cells were transformed into the filamentous hyphal cells which were separated each other and independently penetrated into the host tissues. Cytologically the hyphal cells growing within the host parenchyma were similar to that of the peripheral cells. Especially the hyphal cells contained various plastid types including well-developed thylakoids, starch grains, crystals. The hyphal cells reached the host xylem were differentiated into the water-conducting elements, xylary hyphae, by thickening of the secondary walls. The hyphal cells reached the host phloem were differentiated into the nutrient-conducting elements, phloic hyphae. The phloic hyphae possessed a thin layer of peripheral cytoplasm showing a typical feature of sieve-tube member such as the parallel arrays of smooth endoplasmic reticulum, mitochondria, and plastids with the fine starch granules. The structural features of the endophytic cells were compared with those of the other parasitic plants and were discussed in view of the translocation of materials from host to parasite.
Alternative Title
Development and ultrastructure of the haustorium in tje parasitic angiosperm cuscuta japonica choisy penetrated the host plant
조선대학교 대학원
교육대학원 생물교육
Awarded Date
2006. 2
Table Of Contents
목차 = i
List of figures = ii
Ⅰ. 서론 = 1
Ⅱ. 재료 및 방법 = 7
1. 재료 = 7
2. 방법 = 8
Ⅲ. 결과 = 10
1. 새삼 줄기의 구조 = 10
2. 숙주식물의 유조직에 침입한 흡기 = 10
3. 숙주 식물의 관다발조직에 도달한 흡기 = 34
4. 침입한 흡기의 영양을 받는 숙주 조직 = 34
Ⅳ. 고찰 = 59
1. 흡기의 기원 = 59
2. 흡기 세포의 생장 = 60
2-1. 흡기 및 숙주 세포들 접촉부위에서의 원형질연락사 = 60
2-2. 흡기 세포의 색소체 = 62
3. 관다발 세포로 분화하는 흡기 세포들 = 63
3-1. 물관 세포로 분화하는 사상세포들 = 63
3-2. 체관 세포로 분화하는 사상세포들 = 64
4. 흡기의 공격을 받은 숙주 조직의 구조 = 65
Ⅴ. 결론 = 66
참고문헌 = 67
김연희. (2006). 숙주식물에 침입한 기생피자식물 새삼(Cuscuta japonica Choisy) 흡기(吸器)의 발달과 미세구조
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Education > Theses(Master)(교육대학원)
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