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Regeneration and Endogenous Phytohormone Responses to High-Temperature Stress Drive Recruitment Success in Hemiepiphytic Fig Species
Fang, Chuangwei; Chen, Huayang2; Castillo-Diaz, Diana; Wen, Bin4; Cao, Kun-Fang; Goodale, Uromi Manage1,3
2021
发表期刊FRONTIERS IN PLANT SCIENCE
ISSN1664-462X
卷号12
摘要Exposure to high-temperature stress (HTS) during early regeneration in plants can profoundly shape seed germination, seedling growth, and development, thereby providing stress resilience. In this study, we assessed how the timing of HTS, which was implemented as 8 h in 40 degrees C, could affect the early regeneration stages and phytohormone concentration of four hemiepiphytic (Hs) and four non-hemiepiphytic (NHs) Ficus species. Their seed germination, seedling emergence, and seedling survival probabilities and the concentrations of three endogenous phytohormones, abscisic acid (ABA), indole-3-acetic acid (IAA), and salicylic acid (SA) were assessed after HTS imposed during imbibition, germination, and emergence. In both groups, seeds were more sensitive to HTS in the early regeneration process; stress experienced during imbibition affected emergence and survival, and stress experienced during germination affected subsequent emergence. There was no effect from HTS when received after emergence. Survival was highest in hemiepiphytes regardless of the HTS treatment. The phytohormones showed growth form- and regeneration stage-specific responses to HTS. Due to the HTS treatment, both SA and ABA levels decreased in non-hemiepiphytes during imbibition and germination; during germination, IAA increased in hemiepiphytes but was reduced in non-hemiepiphytes. Due to the HTS treatment experienced during emergence ABA and IAA concentrations were greater for hemiepiphytes but an opposite effect was seen in the two growth forms for the SA concentration. Our study showed that the two growth forms have different strategies for regulating their growth and development in the early regeneration stages in order to respond to HTS. The ability to respond to HTS is an ecologically important functional trait that allows plant species to appropriately time their seed germination and seedling development. Flexibility in modulating species regeneration in response to HTS in these subtropical and tropical Ficus species could provide greater community resilience under climate change.
关键词heat stress Ficus plant hormones seed and seedling climate change
学科领域Plant Sciences
DOI10.3389/fpls.2021.754207
收录类别SCI
语种英语
WOS关键词HEMI-EPIPHYTIC FIGS ; SEED-GERMINATION ; SALICYLIC-ACID ; CLIMATE-CHANGE ; PLANT-GROWTH ; ABIOTIC STRESS ; FICUS ; TOLERANCE ; MORACEAE ; LIGHT
WOS研究方向Science Citation Index Expanded (SCI-EXPANDED)
WOS记录号WOS:000733647000001
出版者FRONTIERS MEDIA SA
文献子类Article
出版地LAUSANNE
作者邮箱uromi.manage.goodale@outlook.com
作品OA属性Green Published, gold
引用统计
文献类型期刊论文
条目标识符http://ir.ibcas.ac.cn/handle/2S10CLM1/26823
专题植被与环境变化国家重点实验室
作者单位1.Guangxi Univ, Coll Forestry, Guangxi Key Lab Forestry Ecol & Conservat, Nanning, Peoples R China
2.Guangxi Univ, Coll Forestry, State Key Lab Conservat & Utilizat Subtrop Agro B, Nanning, Peoples R China
3.Inst Bot, Chinese Acad Sci, State Key Lab Vegetat & Environm Change, Beijing, Peoples R China
4.Seed Conservat Specialist Grp, Species Survival Commiss, Int Union Conservat Nat, Gland, Switzerland
5.Ctr Integrat Conservat, Chinese Acad Sci, Xishuangbanna Trop Bot Garden, Beijing, Peoples R China
推荐引用方式
GB/T 7714
Fang, Chuangwei,Chen, Huayang,Castillo-Diaz, Diana,et al. Regeneration and Endogenous Phytohormone Responses to High-Temperature Stress Drive Recruitment Success in Hemiepiphytic Fig Species[J]. FRONTIERS IN PLANT SCIENCE,2021,12.
APA Fang, Chuangwei,Chen, Huayang,Castillo-Diaz, Diana,Wen, Bin,Cao, Kun-Fang,&Goodale, Uromi Manage.(2021).Regeneration and Endogenous Phytohormone Responses to High-Temperature Stress Drive Recruitment Success in Hemiepiphytic Fig Species.FRONTIERS IN PLANT SCIENCE,12.
MLA Fang, Chuangwei,et al."Regeneration and Endogenous Phytohormone Responses to High-Temperature Stress Drive Recruitment Success in Hemiepiphytic Fig Species".FRONTIERS IN PLANT SCIENCE 12(2021).
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