热带亚热带植物学报2024，Vol.32Issue(1)：66-74,9.DOI:10.11926/jtsb.4705
西南典型半寄生植物毛叶钝果寄生的生物量分配研究
Studies on Biomass Allocation of a Common Mistletoe Species,Taxillus nigrans,in Southwest China
摘要
Abstract
To further understand the growth development characteristics and survival strategies of semi-parasitic plants,the biomass allocation pattern and allometric growth characteristics of Taxillus nigrans,a typical southwestern semi-parasitic plant,were studied,and regression models of individual biomass(TB)with length(L)or base diameter(BD)as independent variables were established:TB=0.0027L2.3077,TB=134.99BD3.334,and TB= 4.35L+8.34BD-183.85.The results showed that the biomass allocation ratio of T.nigrans at juvenile stage and the nonjuvenile stage was leaf＞stem＞haumator and stem＞leaf＞haumator,respectively.At juvenile stage,there was an isometric relationship between haustoria and shoots(leaf,stem,and fruit).At nonjuvenile stage,the allometric growth relationships among the organs of T.nigrans were not consistent with the allometric biomass partitioning theory(APT),the allometric exponent(1.01)between leaves and haustoria was significantly higher than the predicted value from APT(0.75)(P＜0.001),and there was a significant allometric relationship between stems and haustoria(P=0.001).The unique biomass allocation patterns and allometric growth characteristics of T.nigrans were beneficial to its adaptation to parasitic life.关键词
毛叶钝果寄生/半寄生植物/生物量分配/异速生长/生存策略Key words
Taxillus nigrans/Semi-parasitic plant/Biomass allocation/Allometry/Survival strategy引用本文复制引用
岳喜明,缪宁,马瑞,李桾溢,陶琼,薛盼盼..西南典型半寄生植物毛叶钝果寄生的生物量分配研究[J].热带亚热带植物学报,2024,32(1):66-74,9.基金项目
国家重点研究计划项目(2016YFD0600203) （2016YFD0600203）
国家自然科学基金项目(31200477)资助This work was supported by the National Key Research&Development Program of China(Grant No.2016YFD0600203),and the National Natural Science Foundation of China(Grant No.31200477). （31200477）
