On the role of calcium in indole-3-acetic acid movement and graviresponse in etiolated pea epicotyls [0.03%]
钙在光下豌豆子叶下胚轴生长素运动及重力反应中的作用研究
F Migliaccio,A W Galston
F Migliaccio
To determine whether Ca2+ plays a special role in the early graviresponse of shoots, as has been reported for roots, we treated etiolated pea epicotyls with substances known to antagonize Ca2+ (La3+), to remove Ca2+ from the wall (spermidin...
Correlations between polyamine ratios and growth patterns in seedling roots [0.03%]
苗根中多胺比值与生长模式的相关性研究
H J Shen,A W Galston
H J Shen
The levels of putrescine, cadaverine, spermidine and spermine were determined in seedling roots of pea, tomato, millet and corn, as well as in corn coleoptiles and pea internodes. In all roots, putrescine content increased as elongation pro...
Polyamine levels as related to growth, differentiation and senescence in protoplast-derived cultures of Vigna aconitifolia and Avena sativa [0.03%]
蒺藜豆和燕麦原生质体培养过程中多胺水平与细胞生长、分化和衰老的关系
R Kaur Sawhney,N S Shekhawat,A W Galston
R Kaur Sawhney
We have previously reported that aseptically cultured mesophyll protoplasts of Vigna divide rapidly and regenerate into complete plants, while mesophyll protoplasts of Avena divide only sporadically and senesce rapidly after isolation. We m...
Changes in IAA responsiveness in the elongation region of graviresponding mung bean roots [0.03%]
感受重力的绿豆根上生长素反应性的变化
C L Stinemetz
C L Stinemetz
IAA responsiveness of sections of root tissue taken from the top and bottom of mung bean roots was assessed prior to and at varying times following gravistimulation. Prior to gravistimulation, root tissue sections from the sides of the elon...
Isatin as an auxin source favoring floral and vegetative shoot regeneration from calli produced by thin layer explants of tomato pedicel [0.03%]
异丙酸作为促进番茄花梗薄层外植体产生愈伤组织中芽再生的生长素来源
P B Applewhite,R K-Sawhney,A W Galston
P B Applewhite
Thin layer explants taken from the pedicels and peduncles of flowering tomato plants yielded calli with great organogenetic potential. Of the 15 cultivars tested, 7 regenerated roots, shoots and eventually entire fruit-bearing plants. Calli...
Influence of low temperature preincubation on somatic embryogenesis and ethylene emanation from orchardgrass leaves [0.03%]
低温预培养对天堂草离体胚发生体系中离体叶片乙烯释放的影响研究
Z Tomaszewski Jr,A I Kuklin,C E Sams et al.
Z Tomaszewski Jr et al.
The objectives of this study were to determine the effects of low temperature (4 degrees C) preincubation on somatic embryogenesis from orchardgrass (Dactylis glomerata L.) leaf cultures and to relate these effects to ethylene emanation dur...
Effect of calmodulin antagonists on the growth and graviresponsiveness of primary roots of maize [0.03%]
钙调素拮抗剂对玉米主根生长及重力反应的影响
C L Stinemetz,K H Hasenstein,L M Young et al.
C L Stinemetz et al.
We examined the effect of calmodulin (CaM) antagonists applied at the root tip on root growth, gravity-induced root curvature, and the movement of calcium across the root tip and auxin (IAA) across the elongation zone of gravistimulated roo...