1. A fundamental trade-off among vascular plants between traits inferring rapid resource acquisition and those leading to conservation of resources has now been accepted broadly, but is based on empirical data with a strong bias toward leaf traits. Here we test whether interspecific variation in traits of different plant organs obeys this same trade-off and whether within-plant trade-offs are c...

To achieve optimal functionality, plant organs like leaves and petals have to grow to a certain size. Beginning with a limited number of undifferentiated cells, the final size of an organ is attained by a complex interplay of cell proliferation and subsequent cell expansion. Regulatory mechanisms that integrate intrinsic growth signals and environmental cues are required to enable optimal leaf ...

ABSTRACT Rice is one of the main foods consumed by half world’s population. The rice crop requires plenty water, but upland cultivated in a non-flooded environment, although its productivity lower than that lowland rice. grains mostly consist starch, which synthesized from non-structural carbohydrates imported vegetative organs. long-term storage plays remarkable role maintaining supply photoas...

The distribution of carbon from a branch setting pod in alfalfa was investigated during the seed development of seeds to determine the relative contribution of pod and leaf photoassimilates to the total C balance and to investigate the partitioning of these photoassimilates to other plant organs. A 13Clabeling procedure was used to label C photoassimilates of pods and leaves in alfalfa, and the...

Leaves exhibit a wide range of form and function: as well as the flattened photosynthetic organs we are most familiar with, modifications of leaf morphology produce the rigid spines of cacti, the cup-shaped insect traps of pitcher plants, colorful flower parts such as petals and some of the tendrils used for attachment by climbing plants. One fundamental choice in leaf architecture is whether t...

Plants sense the foliar shade of competitors and alter their developmental programs through the shade-avoidance response. Internode and petiole elongation, and changes in overall leaf area and leaf mass per area, are the stereotypical architectural responses to foliar shade in the shoot. However, changes in leaf shape and complexity in response to shade remain incompletely, and qualitatively, d...

PC. 1997. ETTIN patterns the Arabidopsis floral meristem and reproductive organs. Development 124: 4481–4491. Sussex IM. 1955. Morphogenesis in Solanum tuberosum L. Experimental investigation of leaf dorsoventrality and orientation in the juvenile shoot. Phytomorphology 5: 286–300. Timmermans MCP, Schultes NP, Jankovsky JP, Nelson T. 1998. Leafbladeless1is required for dorsoventrality of latera...

Increased transpiration efficiency (the ratio of biomass to water transpired, TE) could lead to increased drought tolerance under some water deficit scenarios. Intrinsic (i.e., leaf-level) TE is usually considered as the primary source of variation in whole-plant TE, but empirical data usually contradict this assumption. Sunflower has a significant variability in TE, but a better knowledge of t...

The leaf is the major organ involved in light perception and conversion of solar energy into organic carbon. In order to adapt to different natural habitats, plants have developed a variety of leaf forms, ranging from simple to compound, with various forms of dissection. Due to the enormous cellular complexity of leaves, understanding the mechanisms regulating development of these organs is dif...

Non-structural carbohydrates (NSC) affect tree growth and survival when photosynthesis is impacted by climate change, such as seasonal drought extreme precipitation. Nevertheless, it still unclear whether Eucalyptus suffers limitation under natural conditions if trees recover artificial cultivation. In present study, we conducted a field control experiment to compare the NSC storage in urophyll...