Rejuvenation of Sequoia sempervirens by Repeated Grafting of Shoot Tips onto Juvenile Rootstocks in Vitro | Zendy

Li-Chun Huang | Zendy; S. Lius | Zendy; BauLian Huang | Zendy; Toshio Murashige | Zendy; El Fatih Mohamed Mahdi | Zendy; Richard Van Gundy | Zendy

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Rejuvenation of Sequoia sempervirens by Repeated Grafting of Shoot Tips onto Juvenile Rootstocks in Vitro

Author(s) -

Li-Chun Huang,

S. Lius,

BauLian Huang,

Toshio Murashige,

El Fatih Mohamed Mahdi,

Richard Van Gundy

Publication year - 1992

Publication title -

plant physiology

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 3.554

H-Index - 312

eISSN - 1532-2548

pISSN - 0032-0889

DOI - 10.1104/pp.98.1.166

Subject(s) - shoot , rootstock , juvenile , sequoia , biology , cutting , seedling , botany , callus , grafting , horticulture , chemistry , ecology , organic chemistry , polymer

Repeated grafting of 1.5-centimeter long shoot tips from an adult Sequoia sempervirens tree onto fresh, rooted juvenile stem cuttings in vitro resulted in progressive restoration of juvenile traits. After four successive grafts, stem cuttings of previously adult shoots rooted as well, branched as profusely, and grew with as much or more vigor as those of seedling shoots. Reassays disclosed retention for 3 years of rooting competence at similar levels as originally restored. Adventitious shoot formation was remanifested and callus development was depressed in stem segments from the repeatedly grafted adult. The reversion was associated with appearance and disappearance of distinctive leaf proteins. Neither gibberellic acid nor N(6)-beneyladenine as nutrient supplements duplicated the graft effects.

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