English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Tools annual

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Presents the access of premium content as premium feature

Premium Content

Global: Zendy Plus annual

Global: Zendy Free Plan

Photosynthetic rates (A) in celery-(Apium graveolens L.) and other polyol-synthesizers are sometimes high for C, species. In celery such rates have been related to a low CO 2  compensation point typical of C 4  and C 3 -C 4  intermediate spp, although other data show celery photosynthesis as typically C 3  Therefore, celery gas exchange was here reanalyzed, and while A was high (CO 2  assimilation rates were 21.2 and 27.6 μ mol m -2 s -1 , average and maximum, photosynthesis was otherwise C,: CO, comp pt of 3.5-5.0 Pa, carboxylation efficiency of 0.99 μmol CO 2 m -2 s -1 Pa -1 , light comp pt of 8-36 μ mol photon m -1 s -1 , optimum temp of 22-27°C for A max . High A may relate to a capacity to synthesize both mannitol and sucrose.  14 C pulse-chase studies, with different A obtained by imposing light gradients across opposite leaflets, showed 1-10% increases in mannitoll sucrose labelling. Higher A may reflect carbon partitioning into mannitol, agreeing with a hypothesis that polyol synthesis effectively recycles reductant in the cytosol.

733 PB 023 PHOTOSYNTHESIS AND MANNITOL/SUCROSE PARTITIONING UNDER DIFFERENT CO, ASSIMILATION CONDITIONS IN CELERY