000 02803nab a22004697a 4500
001 G448251
003 MX-TxCIM
005 20240919021144.0
008 121211b |||p||p||||||| |z||| |
022 _a0721-7714
022 _a1432-203X (Online)
024 _2https://doi.org/10.1007/s002990050358
040 _aMX-TxCIM
041 _aeng
072 0 _aF30
072 0 _aH10
090 _aCIS-3435
100 1 _aPellegrineschi, A.
_96676
245 1 0 _aIn vitro plant regeneration via organogenesis of cowpea [Vigna unguiculata (L.) Walp.].
260 _c1997.
_aBerlin (Germany) :
_bSpringer,
340 _aPrinted
520 _aShoot regeneration via organogenesis was achieved from axenic cowpea [Vigna unguiculata subsp. unguiculata L. (Walp.) Verde.] hypocotyls and cotyledons of advanced breeding lines and varieties. Cotyledons and embryos were excised from green immature pods. The apical parts of the embryos were removed and the hypocotyls were transferred to regeneration media. Cotyledons and hypocotyls were tested on media with gradients of several hormonal and putrescine combinations. Cowpea cotyledons and hypocotyls exhibited a pattern of shoot formation that occurred in three distinct phases. Multiple shoots developed within 45 days from the wounded region of the primary hypocotyl and cotyledons in different media containing a high cytokinin concentration. The induced plant explants were then grown for 20 days in low-intensity light (10 µmol m–2 s–1) on the same medium and numerous shoot buds emerged de novo from the upper part of the hypocotyl and the wounded part of the cotyledons. These buds had no apparent vascular connection with the parent tissues. The plant regeneration capability of this procedure was tested with several cowpea genotypes, five of which (83D-442, 86D-1010, 93K-624, Vita 3 and Ife Brown) responded positively with shoot development and were able to form roots and whole plants. Some somaclonal variation was observed.
546 _aText in English
591 _a0209|Springer|AL-ABC Program|R01JOURN
595 _aCSC
650 1 7 _aCotyledons
_931558
_gAGROVOC
650 1 0 _aCowpeas
650 1 7 _aCowpeas
_2AGROVOC
_95144
650 1 7 _aCrops
_2AGROVOC
_91069
650 1 7 _aExplants
_2AGROVOC
_917330
650 1 7 _91150
_aHormones
_2AGROVOC
650 1 7 _aHypocotyls
_2AGROVOC
_931559
650 1 7 _aOrganogenesis
_2AGROVOC
_911811
650 1 7 _aPlants
_2AGROVOC
_94199
650 1 7 _aRegeneration
_2AGROVOC
_913484
650 1 7 _aSomaclonal variation
_91271
_2AGROVOC
650 1 7 _aVigna unguiculata
_2AGROVOC
_911957
650 1 7 _91134
_aGenotypes
_2AGROVOC
650 1 7 _aPlant breeding
_gAGROVOC
_2
_91203
773 0 _tPlant Cell Reports
_gv. 17, p. 89-95
_dBerlin (Germany) : Springer, 1997.
_wu79234
_x0721-7714
942 _cJA
_2ddc
999 _c22456
_d22456