Analyzing about characteristics of calcium content and mechanisms of high calcium adaptation of common pteridophyte in Maolan karst area of China

doi:10.3724/SP.J.1258.2011.01061

Abstract

Abstract:

Aims Our objective was to analyze the calcium absorption and distribution characteristics of pteridophyte species, and to determine their adaptation to high calcium.
Methods Eleven pteridophytes were collected from Maolan National Nature Reserve and the surrounding area. We analyzed their calcium absorption and distribution behavior by comparing the calcium content in each organ and the rhizosphere.
Important findings In acidic soil, calcium availability in the rhizosphere of Nephrolepis auriculata was much higher than that of other species. Because of low calcium content in acidic soil, the calcium content of calcifuge was significantly lower than that of exclusive calciphytes. Except for N. auriculata and Parathelypteris glanduligera, the calcium content in various organs of plants that lived in acidic soil were mature leaf > roots > young leaf, and the calcium content in various organs of plants that lived in calcareous soil were roots > mature leaf > young leaf. In addition, calcium content in various organs of Pteris cretica var. nervosa had differences between calcareous and acidic soils. Calcium content of exclusive calciphytes had significant interspecific differences. Results suggested that N. auriculata could meet its calcium needs by enriching and activating calcium in the rhizosphere. The calcium content in plants could be reflected by the calcium supply in the soil. In different soils, the calcium-content differences in various organs might be related to their adaptive behavior towards changes of soil calcium content. The demands for calcium of the five exclusive calciphytes species were disparate. When they encountered high calcium stress, their primary adaptation behaviors differed. Cyrtogonellum fraxinellum, Cyrtomium fortune and Pteris vittata had calciphilious features, but Adiantum capillus-veneris was a low calcium species. Key words calcareous soil;calcium content of plant;exclusive calciphytes;high calcium content adaptation

Key words: calcareous soil, calcium content of plant, exclusive calciphytes, high calcium content adaptation

WANG Cheng-Yuan, WANG Shi-Jie, RONG Li, LUO Xu-Qiang. Analyzing about characteristics of calcium content and mechanisms of high calcium adaptation of common pteridophyte in Maolan karst area of China[J]. Chin J Plant Ecol, 2011, 35(10): 1061-1069.

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Figures/Tables 4

References 34

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植物 Species		土壤性质 Soil property	根际土壤全钙含量 Total calcium content in rizosphere soil (mg·g^-1)	根际土壤交换性钙含量 Exchangeable calcium content in rizosphere soil (mg·g^-1)	根际土壤钙有效度 Availability of calcium in rizosphere soil (%)	植株总钙含量 Total calcium content in each plant (mg·g^-1)
专性钙生蕨类种 Exclusive calciphyte ferns	柳叶蕨 Cyrtogonellum fraxinellum	石灰土 Calcareous soil	24.15 ± 8.45^a	11.08 ± 4.36^ab	49.75 ± 20.45^b	8.57 ± 1.43^abc
	贯众 Cyrtomium fortunei	石灰土 Calcareous soil	14.31 ± 9 .44^abc	6.46 ± 2.85^bc	50.97 ± 14.58^b	7.71 ± 0.81^bcd
	蜈蚣草 Pteris vittata	石灰土 Calcareous soil	17.65 ± 9.71^abc	5.49 ± 2.84^bcd	31.11 ± 16.52^b	8.66 ± 1.69^abc
	铁线蕨 Adiantum capillus-veneris	石灰土 Calcareous soil	19.53 ± 6.48^ab	6.69 ± 2.16^bc	31.29 ± 11.65^b	6.07 ± 0.77^de
	肿足蕨 Hypodematium crenatum	石灰土 Calcareous soil	24.26 ± 4.59^a	7.23 ± 1.68^abc	29.78 ± 3.24^b	10.42 ± 0.38^a
厌钙蕨类种 Calcifuge ferns	铁芒萁 Dicranopteris linearis	酸性土 Acidic soil	2.05 ± 1.24^c	0.78 ± 0.48^e	38.56 ± 4.43^b	2.14 ± 0.34^g
	狗脊 Woodwardia japonica	酸性土 Acidic soil	2.59 ± 0.99^c	0.92 ± 0.39^e	35.54 ± 2.67^b	2.95 ± 0.69^fg
	乌蕨 Stenoloma chusanum	酸性土 Acidic soil	2.38 ± 1.67^c	1.33 ± 1.25^de	52.15 ± 17.75^b	3.41 ± 1.25^fg
广布蕨类种 Dispersed ferns	肾蕨 Nephrolepis auriculata	石灰土 Calcareous soil	18.29 ± 3.26^abc	10.82 ± 3.46^a	59.83 ± 18.21^ab	9.06 ± 1.77^ab
	肾蕨 Nephrolepis auriculata	酸性土 Acidic soil	5.28 ± 2.31^bc	4.36 ± 1.54^bcd	82.53 ± 8.63^a	8.22 ± 0.75^bc
	金星蕨 Parathelypteris glanduligera	石灰土 Calcareous soil	15.62 ± 18.03^abc	4.49 ± 2.24^bcd	40.41 ± 17.69^b	6.46 ± 1.22^cd
	金星蕨 Parathelypteris glanduligera	酸性土 Acidic soil	3.96 ± 2.26^bc	1.79 ± 1.12^cde	45.17 ± 7.45^b	4.46 ± 0.70^ef
	凤尾蕨 Pteris cretica var. nervosa	石灰土 Calcareous soil	16.24 ± 12.20^abc	5.17 ± 2.09^bcd	38.15 ± 12.68^b	7.73 ± 1.99^bcd
	凤尾蕨 Pteris cretica var. nervosa	酸性土 Acidic soil	11.58 ± 1.19^bc	4.71 ± 1.76^bcd	39.95 ±10.92^b	4.16 ± 1.03^efg

植物 Species		土壤性质 Soil property	根际土壤全钙含量 Total calcium content in rizosphere soil (mg·g^-1)	根际土壤交换性钙含量 Exchangeable calcium content in rizosphere soil (mg·g^-1)	根际土壤钙有效度 Availability of calcium in rizosphere soil (%)	植株总钙含量 Total calcium content in each plant (mg·g^-1)
专性钙生蕨类种 Exclusive calciphyte ferns	柳叶蕨 Cyrtogonellum fraxinellum	石灰土 Calcareous soil	24.15 ± 8.45^a	11.08 ± 4.36^ab	49.75 ± 20.45^b	8.57 ± 1.43^abc
	贯众 Cyrtomium fortunei	石灰土 Calcareous soil	14.31 ± 9 .44^abc	6.46 ± 2.85^bc	50.97 ± 14.58^b	7.71 ± 0.81^bcd
	蜈蚣草 Pteris vittata	石灰土 Calcareous soil	17.65 ± 9.71^abc	5.49 ± 2.84^bcd	31.11 ± 16.52^b	8.66 ± 1.69^abc
	铁线蕨 Adiantum capillus-veneris	石灰土 Calcareous soil	19.53 ± 6.48^ab	6.69 ± 2.16^bc	31.29 ± 11.65^b	6.07 ± 0.77^de
	肿足蕨 Hypodematium crenatum	石灰土 Calcareous soil	24.26 ± 4.59^a	7.23 ± 1.68^abc	29.78 ± 3.24^b	10.42 ± 0.38^a
厌钙蕨类种 Calcifuge ferns	铁芒萁 Dicranopteris linearis	酸性土 Acidic soil	2.05 ± 1.24^c	0.78 ± 0.48^e	38.56 ± 4.43^b	2.14 ± 0.34^g
	狗脊 Woodwardia japonica	酸性土 Acidic soil	2.59 ± 0.99^c	0.92 ± 0.39^e	35.54 ± 2.67^b	2.95 ± 0.69^fg
	乌蕨 Stenoloma chusanum	酸性土 Acidic soil	2.38 ± 1.67^c	1.33 ± 1.25^de	52.15 ± 17.75^b	3.41 ± 1.25^fg
广布蕨类种 Dispersed ferns	肾蕨 Nephrolepis auriculata	石灰土 Calcareous soil	18.29 ± 3.26^abc	10.82 ± 3.46^a	59.83 ± 18.21^ab	9.06 ± 1.77^ab
	肾蕨 Nephrolepis auriculata	酸性土 Acidic soil	5.28 ± 2.31^bc	4.36 ± 1.54^bcd	82.53 ± 8.63^a	8.22 ± 0.75^bc
	金星蕨 Parathelypteris glanduligera	石灰土 Calcareous soil	15.62 ± 18.03^abc	4.49 ± 2.24^bcd	40.41 ± 17.69^b	6.46 ± 1.22^cd
	金星蕨 Parathelypteris glanduligera	酸性土 Acidic soil	3.96 ± 2.26^bc	1.79 ± 1.12^cde	45.17 ± 7.45^b	4.46 ± 0.70^ef
	凤尾蕨 Pteris cretica var. nervosa	石灰土 Calcareous soil	16.24 ± 12.20^abc	5.17 ± 2.09^bcd	38.15 ± 12.68^b	7.73 ± 1.99^bcd
	凤尾蕨 Pteris cretica var. nervosa	酸性土 Acidic soil	11.58 ± 1.19^bc	4.71 ± 1.76^bcd	39.95 ±10.92^b	4.16 ± 1.03^efg