AGRAS-like gene of sunflower (Helianthus annuusL.) alters the gibberellin content and axillary meristem outgrowth in transgenicArabidopsisplants

Plant Biology ◽  
2015 ◽  
Vol 17 (6) ◽  
pp. 1123-1134 ◽  
Author(s):  
M. Fambrini ◽  
L. Mariotti ◽  
S. Parlanti ◽  
M. Salvini ◽  
C. Pugliesi
Keyword(s):  
Axillary Meristem ◽  
Gibberellin Content

Spatiotemporal Changes in Gibberellin Content are Required for Soybean Nodulation

2021 ◽  
Author(s):  
Xitong Chu ◽  
Huanan Su ◽  
Satomi Hayashi ◽  
Peter M. Gresshoff ◽  
Brett J. Ferguson
Keyword(s):  
Spatiotemporal Changes ◽  
Gibberellin Content ◽  
Soybean Nodulation

scholarly journals Establishment of a Rapid Plant Regeneration System in Physalis angulata L. through Axillary Meristems

2015 ◽  
Vol 7 (4) ◽  
pp. 471-474
Author(s):  
Owk ANIEL KUMAR ◽  
Songa RAMESH ◽  
Sape SUBBA TATA
Keyword(s):  
Shoot Culture ◽  
Shoot Multiplication ◽  
Multiple Shoot ◽  
Herbaceous Plant ◽  
Axillary Meristem ◽  
Regeneration System ◽  
Axillary Meristems ◽  
Meristem Explants ◽  
Physalis Angulata

An optimal plant propagation method of Physalis angulata L., a medicinally important herbaceous plant species has been developed using axillary meristem explants. Shoot bud proliferation was initiated from axillary meristem explants cultured on MS medium supplemented with various concentrations of 0.5-2.5mg/L/(BAP)/(Zeatin)/(KIN). The maximum in vitro response of shooting frequency of explants (88.1%) and shoots per explant (42) was achieved with medium containing 1.0mg/L BAP. Multiple shoot culture was established by repeated subculturing of the shoot buds of axillary meristems on shoot multiplication medium. Among the subculture media BAP in combination with 1.5mg/L (IAA)+0.25mg/L(GA3) produced maximum shoots per explant (128±0.29) after two weeks of culture. Effective in vitro shoot elongation and rooting was achieved on 1.0mg/L(GA3) and 1.0mg/L(IBA), respectively. Most of the generated shoots were successfully transferred to soil under field conditions. The survival percentage of the transferred plants on soil was found to be 90 per cent.  This protocol can be used for commercial propagation and for future genetic improvement studies.

scholarly journals The molecular and genetic regulation of shoot branching

2021 ◽  
Author(s):  
Zhiwei Luo ◽  
Bart J Janssen ◽  
Kimberley C Snowden
Keyword(s):  
Plant Hormones ◽  
Genetic Regulation ◽  
Regulatory Genes ◽  
Shoot Branching ◽  
Axillary Meristem ◽  
Subsequent Growth

One sentence summary The key regulatory genes and the role of multiple plant hormones coordinate the process of axillary meristem initiation and subsequent growth into a branch.

Pathways for inflorescence and floral induction in Antirrhinum

Development ◽  
1996 ◽  
Vol 122 (5) ◽  
pp. 1535-1544 ◽  
Author(s):  
D. Bradley ◽  
C. Vincent ◽  
R. Carpenter ◽  
E. Coen
Keyword(s):  
Morphological Analysis ◽  
Floral Induction ◽  
Leaf Size ◽  
Axillary Meristem ◽  
The Third ◽  
Axillary Meristems ◽  
Meristem Identity ◽  
Short Internodes ◽  
Dependent Pathway ◽  
Subtending Leaves

The presentation of flowers on a modified stem, the inflorescence, requires the integration of several aspects of meristem behaviour. In Antirrhinum, the inflorescence can be distinguished by its flowers, hairy stem, modified leaves, short internodes and spiral phyllotaxy. We show, by a combination of physiological, genetical and morphological analysis, that the various aspects of the inflorescence are controlled by three pathways. The first pathway, depends on expression of the floricaula gene, and is rapidly and discretely induced by exposure to long daylength. Activation of this pathway occurs in very young axillary meristems, resulting in a floral identity. In addition, the length of subtending leaves and hairiness of the stem are partially modified. The second pathway affects leaf size, internode length, and stem hairiness, but does not confer floral meristem identity. This pathway is induced by long daylength, but not as rapidly or discretely as the floricaula-dependent pathway. The third pathway controls the switch in phyllotaxy from decussate to spiral and is activated independently of daylength. The coordination of these three programmes ensures that apical and axillary meristem behaviour is integrated.

scholarly journals The barren stalk2 Gene Is Required for Axillary Meristem Development in Maize

2019 ◽  
Vol 12 (3) ◽  
pp. 374-389 ◽  
Author(s):  
Hong Yao ◽  
Andrea Skirpan ◽  
Brian Wardell ◽  
Michaela S. Matthes ◽  
Norman B. Best ◽  
...  
Keyword(s):  
Axillary Meristem ◽  
Meristem Development

Multifaceted functions of auxin in vegetative axillary meristem initiation

2020 ◽  
Author(s):  
Yahe Guo ◽  
Caihuan Tian ◽  
Yuling Jiao ◽  
Ying Wang
Keyword(s):  
Axillary Meristem

Leaf Axil Anatomy of the Araucariaceae

1987 ◽  
Vol 35 (6) ◽  
pp. 631 ◽  
Author(s):  
GE Burrows
Keyword(s):  
Leaf Axil ◽  
Vascular Cylinder ◽  
Axillary Meristem ◽  
External Appearance ◽  
The Family ◽  
Vascular Connections

Well defined, persistent meristems, which possess neither a bud-like organisation nor vascular connections with the central vascular cylinder, were found in the apparently blank leaf axils of six species of Agathis and 13 species of Araucaria. In other conifers, leaf axils of similar external appearance are usually reported to lack, or gradually lose, any specialised bud-forming tissues. Meristems were found in all axils investigated and in this respect the Araucariaceae approach the typical angiospermous condition of a bud in each leaf axil. Evidence is presented that the type of axillary meristem ontogeny previously described for A. cunninghamii may be widespread in the family.

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