Taihangia rupestris, a rare herb dwelling cliff faces: responses to irradiance

Title:

Taihangia rupestris, a rare herb dwelling cliff faces: responses to irradiance

Creator:

Tang, Min, Yu, Fei-Hai, Zhang, Shu-Min, Niu, Shu-Li, and Jin, Xiao-Bai

Identifier:

https://cdk.lib.cas.cz/client/handle/uuid:8ba03d6c-0cc9-4b41-bc51-f6e5bd91b2ff
uuid:8ba03d6c-0cc9-4b41-bc51-f6e5bd91b2ff
issn:0300-3604
doi:10.1023/B:PHOT.0000040595.23045.bf

Subject:

cliff-inhabiting plant, gas exchange, growth, irradiance, leaf morphology, net photosynthetic rate, restricted habitat, stomatal conductance, transpiration rate, and water use efficiency

Type:

model:article and TEXT

Format:

bez média and svazek

Description:

We studied the responses of gas exchange, leaf morphology, and growth to irradiance in Taihangia rupestris, a naturally rare herb inhabiting only vertical cliff faces. In low irradiance (LI, 10 % of full sun) T. rupestris had lower net photosynthetic rate (PN) and produced much less leaves, total leaf area, and biomass than in high (HI, full sun) or medium irradiance (MI, 50 % of full sun). PN of T. rupestris was higher in HI than in MI on August 8, but lower in HI than in MI on September 22. T. rupestris had shorter petioles and lower leaf area ratio, and produced more but smaller and thicker leaves in HI than in MI. In HI the fast production of new leaves may guarantee T. rupestris to maintain higher PN at the whole plant level and thus accumulate more biomass at harvest, although the single-leaf PN may become lower as found on September 22. Hence T. rupestris possesses a latent capacity to acclimate and adapt to full sun. Irradiance, therefore, may not be a responsible factor for the restricted distribution of T. rupestris on vertical cliffs. and Min Tang ... [et al.].

Language:

Multiple languages

Rights:

http://creativecommons.org/licenses/by-nc-sa/4.0/
policy:public

Coverage:

237-242

Source:

Photosynthetica | 2004 Volume:42 | Number:2

Harvested from:

CDK

Metadata only:

false