Persistent effects of changes in phytochrome status on internode growth in light-grown mustard: Occurrence, kinetics and locus of perception

Planta ◽  
1988 ◽  
Vol 175 (2) ◽  
pp. 214-220 ◽  
Author(s):  
Jorge J. Casal ◽  
Harry Smith
Keyword(s):  
Internode Growth

scholarly journals Role of Polyamines in Gibberellin-Induced Internode Growth in Peas

1985 ◽  
Vol 78 (1) ◽  
pp. 92-99 ◽  
Author(s):  
Mary A. Smith ◽  
Peter J. Davies ◽  
James B. Reid
Keyword(s):  
Internode Growth

scholarly journals Direct and apparent residual effects of prohexadione - calcium applied to young cropping sweet cherry trees

2012 ◽  
Vol 63 (1) ◽  
pp. 87-92 ◽  
Author(s):  
Tadeusz Jacyna ◽  
Tomasz Lipa
Keyword(s):  
Sweet Cherry ◽  
Fruit Shape ◽  
Residual Effects ◽  
Tree Trunk ◽  
Flower Bud ◽  
Internode Growth ◽  
Carry Over ◽  
Prohexadione Calcium ◽  
Fruit Diameter ◽  
Cherry Trees

The same young cropping 'Regina' sweet cherry trees were foliar treated with prohexadione-calcium (Pro- Ca) in two consecutive years at a concentration of [ 125, 125 x 2, 250 ]-(A) and [ 250, 375, 500 ]-(B) mg ProCa l<sup>-1</sup>, respectively. The following year some trees from A-treatments were left untreated to observe carry-over effects (C). None of A-treatments influenced tree trunk, shoot extension and internode growth, whereas B-treatments reduced shoot extension and internode length, simultaneously increasing flower bud density, particularly by 500 mg ProCa l<sup>-1</sup>. There were no carry-over effects produced by C-trees, except some retardation in shoot extension. None of the treatments influenced the tree cropping level. Fruit diameter was reduced by A-treatments, but fruit shape (L/D ratio) and mass were reduced by treatments B, and such reduction was also exhibited by C-trees (residual effects).

The effects of man made gaps on germination, early survival, and morphology of Chlorocardium rodiei seedlings in Guyana

1994 ◽  
Vol 10 (2) ◽  
pp. 245-260 ◽  
Author(s):  
Hans Ter Steege ◽  
Carla Bokdam ◽  
Miranda Boland ◽  
Jose Dobbelsteen ◽  
Ivo Verburg
Keyword(s):  
Negative Impact ◽  
Low Light ◽  
Partial Removal ◽  
Light Levels ◽  
Seed Mortality ◽  
Impact On Survival ◽  
Germination Success ◽  
Internode Growth ◽  
Growth Of Seedlings ◽  
Survival Of Seedlings

ABSTRACTGermination success of Chlorocardium rodiei is low in large gaps. High light levels, however are beneficial for the survival of seedlings. (Partial) removal of cotyledons has a large negative impact on survival especially under low light conditions. Seedlings from large gaps are larger but not taller than those from the understorey, due to differential internode growth. Although growth of seedlings is improved by higher light levels caused for example by logging, great care should be taken with logging intensity, which may increase seed mortality.

Isolation of a dwarf plant responsive to exogenous GA3 from anther cultures of birdsfoot trefoil

1981 ◽  
Vol 59 (7) ◽  
pp. 1338-1342 ◽  
Author(s):  
Dwight T. Tomes ◽  
R. L. Peterson
Keyword(s):  
Chromosome Number ◽  
Culture Medium ◽  
Shoot Tip ◽  
Birdsfoot Trefoil ◽  
Shoot Tip Culture ◽  
Dwarf Plant ◽  
Internode Growth ◽  
Anther Cultures ◽  
Normal Genotype

A dwarf plant isolated from anther culture of a normal genotype of birdsfoot trefoil (Lotus corniculatus L. cv. Leo) has been isolated, characterized, and maintained as an in vitro shoot-tip culture. The dwarf condition is the result of a much shorter internode length when compared with a normal genotype in shoot tip culture. Dwarf shoots which are typically rosette respond to increased GA3 levels by increased internode growth. Normal genotypes are inhibited and eventually die as a result of increased levels of GA3 in the culture medium. This dwarf has the normal tetraploid chromosome number of 24, and although stable in shoot tip cultures since 1977, has not survived outside of in vitro shoot tip cultures.

Multi-analysis of sheath senescence provides new insights into bamboo shoot development at the fast growth stage

2020 ◽  
Author(s):  
Ming Chen ◽  
Ye Ju ◽  
Zishan Ahmad ◽  
Zengfang Yin ◽  
Ding Yulong ◽  
...  
Keyword(s):  
Growth Stage ◽  
Target Genes ◽  
Shoot Development ◽  
Fast Growth ◽  
Sugar Accumulation ◽  
Bamboo Shoot ◽  
Close Link ◽  
Downstream Target ◽  
Complex Process ◽  
Internode Growth

Abstract Sheath senescence is an important part of bamboo shoot development during the fast growth stage. However, no information has been reported about this distinctive process until now. Using multiple approaches, we found that sheath senescence is a complex process that occurs sequentially with chloroplast corruption, chlorophyll degradation, and water loss. Reactive oxygen species (ROS), salicylic acid, and abscisic acid also accumulate in the senescing sheath. Transcriptome analysis showed that NAC and WRKY transcription factors, such as NAC2 and WRKY75, as well as their possible downstream target genes, such as those involved in ROS production, proteolysis, and nutrition recycling, constitute the gene network of the bamboo sheath senescence process. Furthermore, the initiation of sheath senescence might be triggered by hexokinase genes, such as HXK6, which is localized to the mitochondrion and could promote leaf senescence when overexpressed in Arabidopsis. Sheath senescence occurs after the growth decrease of the internodes, which provides assimilates. The slowing of internode growth possibly results in sugar accumulation, such as glucose, in the sheath, which finally upregulates hexokinase genes and initiates sheath senescence. These findings reveal that sheath senescence is a multilevel regulation process and has a close link to the corresponding internode growth, which provides new insights into the shoot development of bamboo during the fast growth stage.

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