scholarly journals TAC4 controls tiller angle by regulating the endogenous auxin content and distribution in rice

2020 ◽  
Vol 19 (1) ◽  
pp. 64-73
Author(s):  
Hua Li ◽  
Hongying Sun ◽  
Jiahuang Jiang ◽  
Xianyou Sun ◽  
Lubin Tan ◽  
...  
Keyword(s):  
Endogenous Auxin ◽  
Auxin Content ◽  
Tiller Angle

scholarly journals Endogenous Auxin Content Contributes to Larger Size of Apple Fruit

2020 ◽  
Vol 11 ◽  
Author(s):  
Haidong Bu ◽  
Wenquan Yu ◽  
Hui Yuan ◽  
Pengtao Yue ◽  
Yun Wei ◽  
...  
Keyword(s):  
Regulatory Mechanism ◽  
Fruit Size ◽  
Apple Fruit ◽  
Auxin Signaling ◽  
Endogenous Auxin ◽  
Rna Seq ◽  
Synthetic Genes ◽  
Economic Trait ◽  
Bud Sport ◽  
Auxin Content

Fruit size is an important economic trait that is controlled by multiple genes. However, the regulatory mechanism for fruit size remains poorly understood. A bud sport variety of “Longfeng” (LF) apple (Malus domestica) was identified and named “Grand Longfeng” (GLF). The fruit size of GLF is larger than that of LF, and both varieties are diploid. We found that the cell size in GLF fruit was larger than that of LF. Then, we compared the fruit transcriptomes of the two varieties using RNA-Seq technology. A total of 1166 differentially expressed genes (DEGs) were detected between GLF and LF fruits. The KEGG analysis revealed that the phytohormone pathway was the most enriched, in which most of the DEGs were related to auxin signaling. Moreover, the endogenous auxin levels of GLF fruit were higher than those of LF. The expressions of auxin synthetic genes, including MdTAR1 and MdYUCCA6, were higher in GLF fruit than LF. Collectively, our findings suggest that auxin plays an important role in fruit size development.

scholarly journals IAA-peroxidase relation in the microsporocytes and anther wall during successive stages of meiosis in Larix europaea L.

2014 ◽  
Vol 50 (1-2) ◽  
pp. 67-73 ◽  
Author(s):  
Alicja Górska-Brylass ◽  
Wiesława B. Chwirot ◽  
Leszek Michalski
Keyword(s):  
Peroxidase Activity ◽  
Reverse Correlation ◽  
Anther Wall ◽  
Endogenous Auxin ◽  
Iaa Oxidase ◽  
Positive Correlation ◽  
Auxin Content

During anther meiosis in <em>Larix europaea</em> considerable variations in the level of peroxidase activity and endogenous auxin content occur both in the microsporocytes and in the anther wall. However, the IAA-peroxidase relations are different in each of these two parts of the anther. In the anther wall characterized by the occurrence of anodic isoperoxidases, the changes in peroxidae activity show a positive correlation with those in endogenous auxin content. In the microsporocytes containing almost only cathodic asoperoxidases the levels of endogenous auxin content and peroxidase activity show a reverse correlation. Thus a preponderance of isoperoxidases showing IAA-oxidase properties occur only in the microsporocytes. These results suggest the important role of the IAA=peroxidase system in the mechanism of differentiation of cells undergoing anther meiosis.

scholarly journals Endogenous auxins and growth inhibitors in the developing inflorescences and infructescences of black poplar (Populus nigra L.)

2015 ◽  
Vol 41 (3) ◽  
pp. 393-400
Author(s):  
Aniela Kamieńska
Keyword(s):  
Maximum Activity ◽  
Populus Nigra ◽  
Growth Inhibitors ◽  
Endogenous Auxin ◽  
Black Poplar ◽  
Auxin Content

The present work reports on some change in endogenous auxin content in black poplar inflorescences and infructescences in the course of their development. The same groups of auxin were present in both inflorescences and infructescences examined. The maximum activity of auxin was found in male as well as female inflorescences about 3,5 cm long. The female ones, however, showed a higher level of total auxin content than the males.

scholarly journals OsHOX1 and OsHOX28 Redundantly Shape Rice Tiller Angle by Reducing HSFA2D Expression and Auxin Content

2020 ◽  
Vol 184 (3) ◽  
pp. 1424-1437
Author(s):  
Yong Hu ◽  
Shuangle Li ◽  
Xiaowei Fan ◽  
Song Song ◽  
Xin Zhou ◽  
...  
Keyword(s):  
Auxin Content ◽  
Tiller Angle

scholarly journals Changes in peanut canopy structure and photosynthetic characteristics induced by an arbuscular mycorrhizal fungus in a nutrient-poor environment

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Yinli Bi ◽  
Huili Zhou
Keyword(s):  
Net Photosynthetic Rate ◽  
Leaf Area ◽  
Photosynthetic Rate ◽  
Mycorrhizal Fungus ◽  
Canopy Structure ◽  
Arbuscular Mycorrhizal ◽  
Photosynthetic Characteristics ◽  
Total Leaf Area ◽  
Tiller Angle ◽  
Amf Inoculation

AbstractA well-developed canopy structure can increase the biomass accumulation and yield of crops. Peanut seeds were sown in a soil inoculated with an arbuscular mycorrhizal fungus (AMF) and uninoculated controls were also sown. Canopy structure was monitored using a 3-D laser scanner and photosynthetic characteristics with an LI-6400 XT photosynthesis system after 30, 45 and 70 days of growth to explore the effects of the AMF on growth, canopy structure and photosynthetic characteristics and yield. The AMF colonized the roots and AMF inoculation significantly increased the height, canopy width and total leaf area of the host plants and improved canopy structure. AMF reduced the tiller angle of the upper and middle canopy layers, increased that of the lower layer, reduced the leaf inclination of the upper, middle and lower layers, and increased the average leaf area and leaf area index after 45 days of growth, producing a well-developed and hierarchical canopy. Moreover, AMF inoculation increased the net photosynthetic rate in the upper, middle and lower layers. Plant height, canopy width, and total leaf area were positively correlated with net photosynthetic rate, and the inclination angle and tiller angle of the upper leaves were negatively correlated with net photosynthetic rate. Overall, the results demonstrate the effects of AMF inoculation on plant canopy structure and net photosynthetic rate.

Increased Endogenous Auxin Production in Arabidopsis thaliana Causes Both Earlier Described and Novel Auxin-Related Phenotypes

2003 ◽  
Vol 22 (3) ◽  
pp. 240-252 ◽  
Author(s):  
Eric van der Graaff ◽  
Kees Boot ◽  
Roger Granbom ◽  
Goran Sandberg ◽  
Paul J. J. Hooykaas
Keyword(s):  
Arabidopsis Thaliana ◽  
Endogenous Auxin ◽  
Auxin Production
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