1 The results provide the cytological basis of promoting adventitious root formation after GL - reagent treatment.

2 The mechanism of formation of adventitious root induced by light or dark pretreatment was initially studied in stem of broad bean seedling.

3 MethodsUnder aseptic circumstance, the adventitious root formation of the cutting branch and explant of Gynostemma Pentaphyllum and growth hormone intervention in the root formation were observed.

4 Furthermore, adventitious root growth, rate was greatly increased when inoculum size was 2. 5%.

5 The adventitious root is triarch, and has the secondary structure.

6 The early stage of adventitious root or bud formation when differentiated cells are triggered to form new meristematic regions.

7 The promotion of adventitious root formation by auxin was proven to be related to ethylene releasing.

8 The biomass of rhizome, adventitious root,[] and belowground part were maximal under dry-wet alternate condition at both growth stages.

9 Results identified that the adventitious root primordia originated from the vascular cambium cells.

10 The way of molecular regulation underlying adventitious root is complex and far beyond understanding now.

11 Observation on the submerged leaf and adventitious root in Trapa.

12 The process of the adventitious root formation in grape cuttings can be divided into six periods.

13 The factors affecting the adventitious root induction of Pinus. sylvestris var. mongolica from adventitious buds were studied.

14 The result shows that auxin polar transport plays an important role in adventitious root formation.

15 GA3 content the decreasing trend in the induction period of adventitious root primordia of mutant of P. tomentosaand and P. dakuanensis and the increasing trend in the expression period.

16 The contents of endogenous IAA and ABA in the differentiation of adventitious root in vitro of Elaeocarpus sylvestris were studied.

17 Method: Plant hormones, concentration of sucrose, active carbon and light time influenced formation of adventitious root and microtuber in vitro from plantlet of Rehmannia glutinosa (85-5).

18 Hypocotyl of Cucumis melon L. can be induced to occur adventitious root on 1/4 MS solid medium.

19 Rhizobium sesbania infected through the apical rupture of the growing site of adventitious root, multiplied in the fissure around the root primordium and stimulated the division of cortex cells.

20 The results showed that Vallisneria spinulosa had structural characteristics of aquatic monocotyledon with well-developed adventitious root and multi-node stolon.

21 Therefore, it has important significance in both theory and practice to research on molecular mechanism of adventitious root development for Populus.