Comparative physiological and transcriptomic analysis of pear leaves under distinct training systems.

ABSTRACT: Canopy architecture is critical in determining the light interception and distribution, and subsequently the photosynthetic efficiency and productivity. However, the physiological responses and molecular mechanisms by which pear canopy architectural traits impact on photosynthesis remain poorly understood. Here, physiological investigations coupled with comparative transcriptomic analyses were performed in pear leaves under distinct training systems. Compared with traditional freestanding system, flat-type trellis system (DP) showed higher net photosynthetic rate (P_N) levels at the most time points throughout the entire monitored period, especially for the interior of the canopy in sunny side. Gene ontology analysis revealed that photosynthesis, carbohydrate derivative catabolic

SUBMITTER: Liu Z 

PROVIDER: S-EPMC7641215 | biostudies-literature | 2020 Nov

REPOSITORIES: biostudies-literature