Photosynthetic activity in seed wings of Dipterocarpaceae in a masting year: Does wing photosynthesis contribute to reproduction?

Title:

Photosynthetic activity in seed wings of Dipterocarpaceae in a masting year: Does wing photosynthesis contribute to reproduction?

Creator:

Kenzo, T., Ichie, T., Ninomiya, I., and Koike, T.

Identifier:

https://cdk.lib.cas.cz/client/handle/uuid:76abf49e-bbf3-4665-abe9-9705b8720644
uuid:76abf49e-bbf3-4665-abe9-9705b8720644
issn:0300-3604
doi:10.1023/B:PHOT.0000027519.26832.f3

Subject:

chlorophyll, daily carbon gain, Dipterocarpus, Dryobalanops, respiration, Sarawak, sepal, Shorea, tropical rainforest, and Vatica

Type:

model:article and TEXT

Format:

bez média and svazek

Description:

The photosynthetic rate of seed wings developed from sepals was compared with the leaf photosynthetic rate in nine dipterocarp tree species (Dipterocarpus pachyphyllus, Dryobalanops aromatica, Dryobalanops lanceolata, Shorea beccariana, Shorea ferruginea, Shorea macroptera ssp. bailonii, Shorea macroptera ssp. macropterifolia, Shorea pilosa, and Vatica spp.). The wings showed positive photosynthetic activity, but at much lower rates than in the leaves. The daily CO2 uptake of wings showed slightly negative values in diurnal gas exchange measurements, even in D. aromatica that showed the highest photosynthetic capacity of all nine species. This low photosynthetic rate in the wings may be the result of low nitrogen and chlorophyll contents in the wing compared with leaves. However, the wings had a higher C/N ratio than leaves, and were thicker. Hence, dipterocarp wings have physical strength and defence against herbivores as higher priorities than photosynthetic activity. and T. Kenzo ... [et al.].

Language:

Multiple languages

Rights:

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

Coverage:

551-557

Source:

Photosynthetica | 2003 Volume:41 | Number:4

Harvested from:

CDK

Metadata only:

false