Variation, coordination, and trade-offs between needle structures and photosynthetic-related traits across five Picea species: Consequences on plant growth

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dc.contributor.authorWang, Junchen
dc.contributor.authorOuyang, Fangqun
dc.contributor.authorAn, Sanping
dc.contributor.authorWang, Lifang
dc.contributor.authorXu, Na
dc.contributor.authorMa, Jianwei
dc.contributor.authorWang, Junhui
dc.contributor.authorZhang, Hanguo
dc.contributor.authorKong, Lisheng
dc.date.accessioned2023-01-10T23:26:04Z
dc.date.available2023-01-10T23:26:04Z
dc.date.copyright2022en_US
dc.date.issued2022
dc.description.abstractBackground: Picea species are distributed and planted world-wide due to their great ecological and economic values. It has been reported that Picea species vary widely in growth traits in a given environment, which reflects genetic and phenotypic differences among species. However, key physiological processes underlying tree growth and the influencing factors on them are still unknown. Results: Here, we examined needle structures, needle chemical components, physiological characteristics and growth traits across five Picea species in a common garden in Tianshui, Gansu province in China: Picea glauca, P. mariana, P. likiangensis, P. koraiensis, and P. crassifolia, among which P. glauca and P. mariana were introduced from North America, P. likiangensis was from Lijiang, Yunan province in China, P. koraiensis was from Yichun, Heilongjiang province in China, and P. crassifolia was native to the experimental site. It was found that nearly all traits varied significantly among species. Tissue-level anatomical characteristics and leaf mass per area (LMA) were affected by needle size, but the variations of them were not associated with the variations in photosynthetic and biochemical capacity among species. Variations in area-based maximum photosynthesis (Pnmax) were affected by stomatal conductance (gs), mesophyll conductance (gm) and biochemical parameters including maximum carboxylation rate (Vcmax), and maximum electron transport rate (Jmax). The fraction of N allocated to different photosynthetic apparatus displayed contrasting values among species, which contributed to the species variations in photosynthetic nitrogen use efficiency (PNUE) and Pnmax. Additionally, all growth traits were positively correlated with Pnmax and PNUE. Conclusion: Needle structures are less important than needle biochemical parameters in determining the variations in photosynthetic capacity across the five Picea species. Pnmax and PNUE are closedly associated with the fraction of N allocated to photosynthetic apparatus (Pphoto) compared with leaf N content per area (Narea). The tremendous growth differences among the five Picea species were substantially related to the interspecies variation in Pnmax and PNUE.en_US
dc.description.reviewstatusRevieweden_US
dc.description.scholarlevelFacultyen_US
dc.description.sponsorshipThis work was financially supported by the Ministry of Science and Technology Special Support Funds for Innovative Teams in Key Areas of the Innovation Talent Promotion Program of People’s Republic of China.en_US
dc.identifier.citationWang, J., Ouyang, F., An, S., Wang, L., Xu, N., Ma, J., . . . Kong, L. (2022). “Variation, coordination, and trade-offs between needle structures and photosynthetic-related traits across five Picea species: Consequences on plant growth.” BMC Plant Biology, 22(242). https://doi.org/10.1186/s12870-022-03593-xen_US
dc.identifier.urihttps://doi.org/10.1186/s12870-022-03593-x
dc.identifier.urihttp://hdl.handle.net/1828/14646
dc.language.isoenen_US
dc.publisherBMC Plant Biologyen_US
dc.subjectNeedle structures
dc.subjectBiochemical parameters
dc.subjectPhotosynthetic capacity
dc.subjectPhotosynthetic N allocation
dc.subjectPNUE
dc.subjectTree growth
dc.subjectCentre for Forest Biology
dc.subject.departmentDepartment of Biology
dc.titleVariation, coordination, and trade-offs between needle structures and photosynthetic-related traits across five Picea species: Consequences on plant growthen_US
dc.typeArticleen_US

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