Phytotoxicity of Chemical Compounds from Cinnamomum camphora Pruning Waste in Germination and Plant Cultivation

Hong Wang, Wei Lin, Dongdong Zhang, Rui Yang, Wanlai Zhou and Zhiyong Qi ()
Additional contact information
Hong Wang: Institute of Urban Agriculture, Chinese Academy of Agricultural Sciences, Chengdu 610213, China
Wei Lin: Institute of Urban Agriculture, Chinese Academy of Agricultural Sciences, Chengdu 610213, China
Dongdong Zhang: Institute of Urban Agriculture, Chinese Academy of Agricultural Sciences, Chengdu 610213, China
Rui Yang: Institute of Urban Agriculture, Chinese Academy of Agricultural Sciences, Chengdu 610213, China
Wanlai Zhou: Institute of Urban Agriculture, Chinese Academy of Agricultural Sciences, Chengdu 610213, China
Zhiyong Qi: Institute of Urban Agriculture, Chinese Academy of Agricultural Sciences, Chengdu 610213, China

IJERPH, 2022, vol. 19, issue 18, 1-12

Abstract: Much previous research has indicated most composts of pruning waste are characterized by potential phytotoxicity, it is highly correlated with the chemical compounds of raw materials. Cinnamomum camphora, a common kind of pruning waste in Southeast Asia and East Asia, is characterized by intense bioactivities due to complex chemical components. This study investigated the potential phytotoxicity of C. camphora pruning waste in light of germination and higher plant growth. C. camphora extracted from leaves completely inhibited seed germination and still showed suppression of root elongation at an extremely low dosage. C. camphora extract also displayed significant inhibition of nutrient absorption in tomato seedlings, including moisture, available nutrients (N, P and K) and key microelements (Fe, Mn, Zn and S). The gene expression of aquaporins and transporters of nitrate and phosphate was significantly up-regulated in roots. This could be regarded as a positive response to C. camphora extract for enhancing nutrient absorption. Moreover, the severe damage to the plasma membrane in roots caused by C. camphora extract might seriously affect nutrient absorption. Camphor is the main component of the C. camphora extract that may induce the phytotoxicity of plasma membrane damage, resulting in the inhibition of nutrient absorption and low biomass accumulation. This study provided a new understanding of the ecotoxicological effects of C. camphora pruning waste, indicating that the harmless disposal of pruning waste requires much attention and exploration in the future.

Keywords: pruning waste; Cinnamomum camphora; phytotoxicity; germination; nutrient absorption; root damage (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2022
References: View references in EconPapers View complete reference list from CitEc
Citations:

Downloads: (external link)
https://www.mdpi.com/1660-4601/19/18/11617/pdf (application/pdf)
https://www.mdpi.com/1660-4601/19/18/11617/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jijerp:v:19:y:2022:i:18:p:11617-:d:915454

Access Statistics for this article

IJERPH is currently edited by Ms. Jenna Liu

More articles in IJERPH from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().