http://localhost:80/xmlui/handle/123456789/16604 2026-04-03T18:47:08Z http://localhost:80/xmlui/handle/123456789/16729 Title: A NEW SPECIES OF ROCHELIA (BORAGINACEAE) FROM PAKISTAN Authors: Y.NASIR Abstract: While studying the Rochelia material for the flora of Pakistan, one gathering, namely Bowes Lyon 789, from Chitral, could not be matched entirely with any of the species found in Pakistam The gathering was tentatively placed under R. laxa. On further examination this gathering proved to be a new species. 1991-12-20T00:00:00Z http://localhost:80/xmlui/handle/123456789/16728 Title: ANTI-PHAGE Mu ACTIVITY AND MUTAGENICITY OF EXTRA CELLULAR PEPTIDES OF CANDDA TROPICALIS Authors: TASHMEEM F. RAZZAKI; M.ALI; F. NAHID; A.ABBASI; Z.H.ZAIDI Abstract: Genetic activity of peptides isolated from cell-free culture filterate of dimorphic yeast Candida tropicalis (strain CBS94) was investigated in Salmonella/microsome reversion assay. The peptides induced either base-pair substitutions or frame-shift mutagenesis and one of this promoted both kind of mutations. A peptide also inhibited Mu induced lysis of Escherichia coli, indicating that the peptide could interfere with the growth of a bacterial virus 1991-12-20T00:00:00Z http://localhost:80/xmlui/handle/123456789/16727 Title: CONTRIBUTION TO THE FLORA OF SAUDI ARABIA PART II, A REVISION OF THE FAMILY SOLANACEAE Authors: SULTANUL ABEDIN; MOHAMMED A; AL-YAHYA; CHAUDHARY, SHAUKAT ALI; MOSSA, JABER SALEM Abstract: The family Solanaceae in the Kingdom of Saudi Arabia has. been revised. It is represented by 43 taxa distributed in 11 genera (including 12 cultivated species). Two new status viz., Solanum incanum L. var. unguicülaiim (A. Rich) Abedin, Al-Yahya, Chaudhary & Mossa and Withania somnifera (L.) Dun subsp obtusifolia (Tackh.) Abedin, Al-Yahya, Chaudhary & Mossa has been suggested and five taxa recorded for the first time are Solanum auguivi Lam. , S. cordatum Forsk., S. eke.ifolium Cav., mthania somnifera (L.) Dun. subsp, obtusifolia (Tackh.) Abedin, Al-Yahya, Chaudhary & Mossa and Datura ferox L. There is an increase of 5 genera with 27 taxa and 6 genera with 22 taxa respectively against previous reports (Migahid, 1978; Collenette, 1985). Key to genera, species their descriptions and geographical distribution are given. 1991-12-20T00:00:00Z http://localhost:80/xmlui/handle/123456789/16726 Title: SOME AUTECOLOGICAL OBSERVATIONS ON CATHARANTHUS ROSEUS (L.) G.DON Authors: S.M. CHAGHTAI; MOHAMMAD IBRAR; QAISER ALI Abstract: Germination and growth of Catharanthus rascus seeds were found directly related to temperature. Scarification of seeds retarded germination and growth of seedlings. Germination and growth of seeds soaked in water at 30 C for 2h significantly increased in longer incubation periods. C. roseus was extremely sensitive to salinity. Loam soil gave maximum germination and growth. Partial sunlight and complete shade adversely affected germination and growth. 1991-12-20T00:00:00Z